by Charlotte Kilpatrick | Oct 24, 2024 | Global Health |
In October 2024 the International Finance Facility for Immunisation (IFFIm) priced a US$1 billion, 3-year fixed-rate bond to fund “critical vaccine research and immunisation programmes”. This is IFFIm’s largest single benchmark transaction in the primary market since its inaugural benchmark in 2006, with proceeds supporting Gavi and CEPI. The bond will mature on 29th October 2027 and carries a semi-annual coupon of 4.125% and a semi-annual re-offer yield of 4.222%.
“The success of this bond highlights the ongoing strength of IFFIm’s model, which leverages sovereign support and strong financial structuring to offer investment opportunities that make a positive impact on children’s health.”
The order book was IFFIm’s largest to date, exceeding US$4 billion. The bond drew interest from a diverse group of investors with geographic spread.
Support for vaccine programmes
IFFIm is an “important flexible tool” for organisations like Gavi; since 2006 it has provided Gavi with US$5.8 billion in financing, one sixth of its overall budget. It has been “critical” in enabling Gavi’s recent emergency responses as well as routine immunisation and health system resilience efforts. Dr Sania Nishtar, CEO of Gavi, reflected that IFFIm has been a “groundbreaking and indispensable tool”.
“Today’s bond issue provides us with vital flexibility in our mission to protect millions of children from preventable diseases and to protect our world from the threat of future pandemics.”
As Gavi nears the end of the 2021-2025 strategic period and prepares for the next phase, IFFIm states that the bond issue will play a “pivotal role” in supporting life-saving programmes.
IFFIm has also provided approximately US$272 million in past financing to CEPI in support of the research and development of new vaccines. Dr Richard Hatchett, CEO of CEPI, acknowledged the “serious threat to global health security” presented by epidemics and pandemics. He commented that these can be “mitigated through investment in vaccine R&D and manufacturing”.
“The IFFIm financing mechanism enables CEPI to access the critical funding it needs to accelerate the development of vaccines against emerging infectious disease threats, for the benefit of all.”
Offering opportunities
IFFIm Board Chair Ken Lay believes that the latest issue “highlights IFFIm’s unparalleled strengths”; it is “backed by sovereign donors, driven by a vital global mission, and structured to maximise impact”.
“IFFIm’s bonds continue to offer investors compelling opportunities to earn competitive returns with good secondary market liquidity and assured use of proceeds.”
Jorge Familiar, Vice President and Treasurer, World Bank commented that capital markets are a “powerful tool for connecting private investment with global public goods”.
“As IFFIm’s Treasury Manager, the World Bank is pleased to support IFFIm in accessing capital markets to provide a long-term and flexible funding source to Gavi to accelerate access to vaccines and vaccine development.”
Head of SSA and EMEA IG Syndicate, BofA Securities Adrien de Naurois congratulated the IFFIm team on a successful return to the USD market.
“Today’s transaction, the first USD benchmark in two years, is a clear demonstration of IFFIm’s loyal and diverse investor base, attracted by the importance of its mission to deliver immunisation programmes to those most vulnerable via the ongoing work of Gavi.”
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by Charlotte Kilpatrick | Oct 23, 2024 | Global Health |
A study in The Lancet Global Health sought to provide counterfactual scenarios to evaluate the short-term effects of different vaccination strategies on mpox cases and deaths in the Democratic Republic of the Congo (DRC). The researchers used a dynamic transmission model to simulate mpox transmission, stratified by age and province; this was used to assess potential vaccination strategies and their effects on deaths and cases in an epidemic year. The results indicate that vaccinating children aged 15 years or younger, or younger than 5 years, in endemic regions, would be the “most efficient use of vaccines” when resources are limited.
Mpox in DRC
Mpox was first identified in the Democratic Republic of the Congo (DRC) in 1970; it is a zoonotic infectious disease caused by the monkeypox virus (MPXV), which is endemic in “numerous regions” of west and central Africa. MPXV has two clades:
- Clade I is endemic in central Africa with an estimated case fatality rate of up to 10% and mainly affecting children. It is divided into two subclades, Ia and Ib.
- Clade II was historically found in west Africa, with an estimated case fatality rate of up to 1%-3%. It is also divided into two subclades, IIa and IIb. Clade IIb was responsible for the global mpox epidemic in 2022.
The authors state that, until 2022, MPXV was not associated with large outbreaks; most cases were related directly to sylvatic transmission from animals to humans via hunting, wild game preparation, and consumption. Increases in human-to-human transmission were identified in 2017.
The researchers suggest that the low likelihood of transmission in the early decades after the virus’ discovery could be related to smallpox eradication programmes, which offered cross-immunity via vaccination against a related orthopoxvirus. Indeed, since the cessation of the smallpox vaccination programme in the DRC, there has been a “concurrent increase in mpox cases and outbreak frequency”. There is an ongoing, “unprecedentedly large” outbreak of clade I mpox in the DRC, with more than 14,000 reported suspected cases by the end of 2023 and a 4.6% case fatality rate. Over 70% of the deaths are in children younger than 15 years.
Genetic analyses of clade Ia MPXV genomes indicate that in this outbreak, multiple, independent zoonotic introductions into the human population have occurred from one or more reservoir species. An increasing burden of clade Ib MPXV infections have been identified in eastern DRC with evidence of “sustained” human-to-human transmission and many cases in women aged 15-29 years, but clade Ia infections continue to comprise most mpox cases in the DRC.
The study
Bavarian Nordic’s modified vaccinia Ankara vaccine (JYNNEOS) is protective against mpox. It was approved by the US FDA in 2019 but was not widely used against mpox until the 2022 outbreak, when it was “quickly mobilised to vaccinate people at high risk of infection in the USA and Europe”. Despite its high efficacy at two doses, it is “largely unavailable” outside the USA and Europe.
The authors aimed to inform policy and decision makers on the “potential benefits of, and resources needed,” for mpox vaccination campaigns in the DRC. They used an approach based on models from operations research and decision science to offer a robust analysis of policy choices “even in the context of incomplete and uncertain data”. The study uses mathematical modelling to simulate the spread of mpox in the DRC during 2023.
Without vaccination, the model predicted 14,700 cases of mpox and 700 deaths from mpox in the DRC over 365 days, consistent with reported estimates. Almost 50% of the cases and deaths came from the province of Equateur. Cases were evenly split between the three age groups: 34% in children under 5 years, 32% in children aged 5-15 years, and 34% in people older than 15 years. However, deaths were “predominantly” seen in children younger than 5 years (51%).
Vaccinating 80% of children younger than 5 years in all provinces or provinces with a history of mpox cases decreased the outbreak to 10,500 cases and 400 deaths. Vaccinating in endemic provinces increased cases to 10,700 and deaths remained the same. The numbers of vaccine doses needed for the strategies were 41.4 million (all provinces), 33.8 million (provinces with a history of mpox), and 13.2 million (endemic provinces only).
Vaccinating 80% of children younger than 15 years in all provinces or provinces with a history of mpox cases decreased the outbreak to 6,400 cases and 200 deaths. Vaccinating in endemic provinces increased cases to 6,800 and deaths remained the same. The numbers of vaccine doses required for these strategies were 81.6 million (all provinces), 67.1 million (provinces with a history of mpox), and 26.6 million (endemic provinces only).
Vaccinating 80% of all ages in all provinces or only non-endemic provinces with a history of cases decreased the case burden to 1,400 cases and 100 deaths, and 2,000 cases and 100 deaths when vaccinating in provinces endemic for mpox. The numbers of doses required for these strategies were 170.8 million (all provinces), 142.0 million (provinces with a history of mpox), and 56.8 million (endemic provinces only).
Managing resources
The paper finds that vaccinating all ages leads to the “largest impact on magnitude of cases and deaths”, but that vaccinating only children aged 15 years or younger provides “nearly the same effect with fewer vaccine doses required”. Although vaccinating only children younger than 5 years showed a “drop-off” in averted cases and deaths, it provides the most efficiency.
“This analysis shows the effectiveness of focussing an mpox vaccination campaign specifically in the provinces endemic for mpox in the DRC. This targeted strategy prevents nearly as many cases and deaths as broader approaches but uses fewer vaccine doses and thus would be less costly to implement.”
Alexandra Savinkina, fourth year PhD student in the Yale School of Public Health (YSPH) Department of Epidemiology (Microbial Diseases), commented that this study could influence vaccination policy.
“My hope is that it could help inform policy for vaccination in the country and potentially the region and move the needle forward on getting vaccines to the people who need them most in the DRC.”
Savinkina hopes that “we can learn from the global mpox outbreak that we can’t ignore disease in other places”.
“If the resources to help people exist, I think we should be using them, whether in the U.S. or in Africa.”
Dr Gregg Gonsalves, associate professor of epidemiology at YSPH, acknowledged barriers to access.
“We take it for granted that we can get a vaccination for COVID or a flu shot at our local CVS, but the infrastructure to deliver vaccines in DRC is far less robust.”
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by Charlotte Kilpatrick | Oct 14, 2024 | Therapeutic |
Transgene announced in October 2024 that the primary objective of its randomised Phase II study of TG4001 has not been met. The study was evaluating TG4001 in combination with avelumab versus avelumab alone in patients with recurrent or metastatic HPV16-positive cervical and anogenital tumours. The primary objective was improvement in progression-free survival. Although this failure is “disappointing” to the company, Transgene states that it is evaluating the full results to “determine the best way forward”.
TG4001
Transgene’s TG4001 is an “innovative therapy capable of combating papillomavirus-induced cancers”. It teaches the immune system to identify and destroy the cancer cells expressing HPV-16 antigens, specifically E6 and E7.
Results and implications
The pre-planned subgroup analysis showed a positive efficacy trend in favour of the TG4001-containing regiment in cervical cancer patients. However, this requires further confirmation through additional analyses. These patients account for around half of the total patients enrolled in the study. Treatment was well tolerated, with adverse events “consistent” with previous observations.
“Transgene is currently evaluating the full study results in detail to determine the best way forward for this programme and will communicate further once this is completed.”
Dr Alessandro Riva, Chair and CEO of Transgene, acknowledged that “failure to meet the primary objective in our Phase II study with TG4001 is disappointing”.
“Nevertheless, we are encouraged by the positive efficacy trend in favour of the combination regiment in cervical cancer patients. We plan to complete a full and rigorous analysis of the data before deciding on any path forward for this asset.”
Dr Riva thanked patients and caregivers for their “important contribution” to the study.
“With a diversified portfolio of novel immunotherapies targeting solid tumours, our strategy remains focussed on advancing our lead asset, TG4050, an individualised cancer vaccine for head and neck cancers for use following surgery and adjuvant therapy.”
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by Charlotte Kilpatrick | Oct 7, 2024 | Global Health |
Gavi shared the 2023 Annual Progress Report in October 2024, highlighting that more than 1.3 million future deaths were averted in 2023 through Gavi-supported vaccination programmes. The report details progress on strategic goals and reveals that the number of children protected with routine childhood vaccines since 2000 has exceeded 1.1 billion. These milestones also have economic benefits for Gavi-supported countries; the report suggests that this totals US$ 52 billion since 2021.
Chair of the Gavi Board, José Manuel Barroso, emphasised the importance of vaccinating children and vulnerable populations.
“We not only enable millions of people to lead healthier, more fulfilled lives [but we also] contribute to families’ prosperity, to strong and more stable communities, and to economic development that is already translating into countries’ paying more towards their immunisation programmes than ever before.”
Dr Sania Nishtar, Gavi’s CEO, commented that many Gavi countries are “on the front line of climate change, with many vulnerable to economic instability and geopolitical tension”.
“For them to be able to immunise more children, not to mention expand important programmes such as HPV, deserves recognition. Fully funding Gavi for its next five-year period will be crucial in expanding these hard-won gains and helping countries further along the pathway to fully sustaining their own immunisation programmes.”
Indicators and goals
Gavi partners and countries are “on track” to achieve most of the six mission indicators of the 2021-2025 strategic period:
- Under-five mortality rate
- Future deaths averted with Gavi support
- Future DALYs averted
- Reduction in number of zero-dose children
- Unique children immunised through routine immunisation with Gavi support
- Economic benefits generated through Gavi-supported immunisations
The mission is supported by four strategic goals
- Introduce and scale up vaccines
- Strengthen health systems to increase equity in immunisation
- Improve sustainability of immunisation programmes
- Ensure healthy markets for vaccines and related products
Vaccines
National Immunisation Coverage estimates in July 2024 confirmed that Gavi is on track in reaching children with new vaccines but must increase efforts to reach zero-dose and under-immunised children. At the end of 2023, Gavi had helped countries reach more than 1.1 billion children with routine immunisations since 2000. This means that the Investment Opportunity 2021-2025 commitment was achieved two years early. Gavi-supported countries completed a total of 13 routine introductions, taking the total introductions from 2021-2023 to 42.
Coverage of the third dose of diphtheria, tetanus, and pertussis-containing vaccine (DTP3) in 57 lower-income Gavi-supported countries remained “stable” at 80%. Apart from the pentavalent vaccine, Gavi-supported vaccines had higher coverage in 2023 than before the pandemic in 2019. After the opening of the support window for the second dose of inactivated polio vaccine (IPV2) in 2021, overall coverage in Gavi-supported countries increased rapidly to 27% by the end of 2023. The revitalisation of the HPV vaccine programme had “significant” effects: countries fully immunised more than 14 million girls with Gavi support in 2023.
Gavi’s vaccine portfolio has “grown significantly” over time; Gavi now supports vaccines against 20 infectious diseases through 53 product presentations.
Strategy indicators
Breadth of protection: In 2023 the 57 Gavi-supported countries (Gavi57) increased breadth of protection by 3 percentage points to 56%, against an implied target of 60% by 2025.
Coverage: Across the four vaccines included in the Sustainable Development Goal (SDG) indicator 3.b.1, the third dose of pneumococcal conjugate vaccine (PCV3) and the last dose in the schedule of human papillomavirus vaccine (HPVC) were trending higher in 2023 than originally projected. However, coverage of the second dose of measles-containing vaccine (MCV2) was “slightly behind but improving” and coverage of the third dose of DTP3 is “off track”.
Rate of scale up of new vaccines: Coverage of three vaccines (yellow fever: 97%, PCV: 93%, and rotaC: 93%) exceeded the benchmark. RotaC recovered from 2022 supply disruptions. Coverage of MCV2 remained under the 90% relative coverage target.
Introductions: 13 new routine introductions took place in 2023 against a milestone of 21. The cumulative total for introductions in 2021-2023 is 42, just “moderately delayed” against the target of 82 by 2025.
Country prioritisation: Gavi Secretariat considered if funding applications presented the three criteria (disease burden, effectiveness of vaccination, accounting for budget to meet requirements for vaccine procurement and sustain immunisation levels after transition from Gavi support). 93% of applications considered disease burden and increase in budget needed; 76% considered effectiveness of vaccination. 41 applications were reviewed from 2021 to 2023, increasing as countries submitted malaria vaccine applications.
Measles: 75% of children aged under five who were previously unvaccinated against measles received an MCV dose among countries conducting a Gavi-supported preventing MCV campaign.
Timely detection and response: Detection and response challenges, including “suboptimal surveillance” and lack of “robust” preparedness plans and locally available resources “persisted” in 2023. However, 5 out of 28 Gavi-supported outbreak responses with timeliness data met the disease-specific timeliness threshold in 2023. Measles-containing and yellow fever vaccines achieved higher rates of timely response than cholera, Ebola, and meningitis vaccines.
The future
Commenting on the progress presented in the report, UNICEF Executive Director Catherine Russell affirmed that “no child should die from vaccine-preventable diseases”.
“Through Gavi, the Vaccine Alliance we continue to bridge the gap between life-saving vaccines and the children who need them.”
To achieve the goals of the next strategic period, 2026-2030, Gavi needs to meet the funding target of US$9 billion. This will enable the organisation to expand protection against more diseases, ensure that the most vulnerable populations are “not left behind”, and protect the world against disease outbreaks. WHO Director-General Dr Tedros Adhanom Ghebreyesus stated that “vaccines are among the most powerful inventions in history”.
“With continued and increased investment in Gavi, we can harness their power, saving millions of lives in the coming decades.”
How do you think Gavi can continue to make immunisation progress into its next strategic period? What are the key challenges it faces? For more on the biggest vaccine challenges and opportunities to overcome them, join us at the Congress in Barcelona this month or subscribe to our weekly newsletters here.
by Charlotte Kilpatrick | Oct 7, 2024 | Technology |
In October 2024, WHO announced that a fourth WHO-prequalified human papillomavirus (HPV) vaccine product, Cecolin, has been confirmed for use in a single-dose schedule. This update is an “important milestone” that will contribute to “improving sustainable supply of HPV vaccines”, ensuring that more people get access to the vaccines that prevent cervical cancer. HPV vaccine programmes have been “hampered” by supply shortages since 2018, and recent production challenges have led to further shortfalls, which will affect girls in need of HPV vaccines Africa and Asia.
Eliminating cervical cancer by tackling HPV
More than 95% of the 660,000 annual cervical cases are caused by HPV. Every two minutes, a woman dies from the disease, and 90% of these deaths happen in low- and middle-income countries. 19 out of the 20 “hardest hit” countries are in Africa. However, vaccination is an effective way of addressing this health need. Dr Tedros Adhanom Ghebreyesus, WHO Director-General, states that “we have the ability to eliminate cervical cancer, along with its painful inequities”.
“By adding another option for a one-dose HPV vaccination schedule, we have taken another step closer in consigning cervical cancer to history.”
Dr Kate O’Brien, Director of the Department of Immunisation, Vaccines, and Biologicals at WHO, reflected that achieving a 90% coverage in girls by the age of 15 is the target of the first pillar of WHO’s global strategy for cervical cancer elimination.
“Given the continuing supply challenges, this addition of single dose vaccine product means countries will have greater choice of vaccines to reach more girls.”
Cecolin
Cecolin is a bivalent HPV vaccine delivered intramuscularly as a single dose. It is manufactured by Xiamen Innovax Biotech and should be stored between 2°C and 8°C. It is designed to protect against HPV types 16 and 18, which are commonly associated with the development of cancer. When Cecolin received prequalification, PATH stated that it had provided “technical assistance” for the process to facilitate greater accessibility. PATH’s China country representative Yuan Yuan commented that the vaccine would put the world “on its way to more equitable HPV vaccination”.
Single-dose coverage
Several products that were initially prequalified for use in a 2-dose schedule can now be used in a single-dose schedule. Cecolin can be recommended for “off-label” use after data support the modified schedule until the manufacturer adds the modified use to the label. Data from July 2024 show an increase in one dose HPV vaccine coverage among girls aged 9-14 years, from 20% in 2022 to 27% in 2023. In 2023, 37 countries were implementing a single-dose schedule; this increased to 57 by September 2024. WHO suggests that the adoption of a single-dose schedule has resulted in “at least” 6 million additional girls being reached with HPV vaccines in 2023.
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by Charlotte Kilpatrick | Oct 4, 2024 | Global Health |
The University of Oxford announced in October 2024 that scientists working on ‘OvarianVax’ a vaccine to encourage the immune system to “recognise and attack” the earliest stages of ovarian cancer, have secured funding from Cancer Research UK. The team will receive up to £600,000 over the next three years to support research from establishing targets to possible clinical trials. Although getting a vaccine to the point where it is “widely available to women at risk of ovarian cancer” is “many years” away, the funding is an “exciting step” towards preventing ovarian cancer at an early stage, rather than treating it after it has taken hold.
Ovarian cancer
Ovarian cancer is the 6th most common cancer in women, causing around 7,500 new cases every year in the UK. There is currently no screening programme for the disease, and some women with are at higher risk with inherited copies of altered genes. Compared to women without gene alterations, women with altered BRCA1 genes face a higher risk by up to 65%, and women with altered BRCA2 genes face a higher risk by up to 35%.
Women with these alterations are recommended to have their ovaries removed by the age of 35, which has implications for having children and brings on early menopause. Many cases of ovarian cancer are only identified at a late stage. Professor Ahmed Ahmed is the Director of the Ovarian Cancer Cell Laboratory, MRC Weatherall Institute of Molecular Medicine at the University of Oxford, and lead for the OvarianVax project and comments that “we need better strategies to prevent ovarian cancer”.
“Currently women with BRCA1/2 mutations, who are at very high risk, are offered surgery which prevents cancer but robs them of the chance to have children afterwards.”
However, a possible “solution” could be on the horizon with the OvarianVax project, focussed on women at high risk but with potential to expand if trials are successful.
“Thanks to this funding, our research can take a big step forward towards a viable vaccine for ovarian cancer.”
Vaccine development
The researchers will identify the proteins on the surface of early-stage ovarian cancer cells that are most strongly recognised by the immune system and work out how effectively the vaccine kills organoids, “mini-models” of ovarian cancer. If this proves successful, they will move forward to clinical trials in the hope that one day women could be offered the vaccine to prevent ovarian cancer.
“Teaching the immune system to recognise the very early signs of cancer is a tough challenge. But we now have highly sophisticated tools which give us real insights into how the immune system recognises ovarian cancer.”
Professor Ahmed’s team has already found that immune cells from patients with ovarian cancer can “remember” the tumour. They will use this discovery to train the immune system to recognise over 100 proteins on the surface of ovarian cancer, known as tumour-associated antigens. The research will uncover which antigens trigger the immune system to recognise and kills cells that are becoming ovarian cancer, using tissue samples from the ovaries and fallopian tubes of people with ovarian cancer to recreate the early stages of disease.
The team will also work with patient and public representatives to understand who would be willing to take the vaccine, who would receive the most benefit from it, how it could be administered, and how to ensure it is taken up by as many eligible women as possible if it is successful in clinical trials.
Prevention research strategy
This is one of several projects that Cancer Research UK is funding within its prevention research strategy, which seeks to use discoveries from the lab to find more precise ways to prevent cancer. Cancer Research UK’s Chief Executive, Michelle Mitchell, described these projects as “a really important step forward into an exciting future, where cancer is much more preventable”. The funding should “power crucial discoveries” that can be used to “realise our ambitions to improve ovarian cancer survival”.
“OvarianVax builds on the exciting developments in vaccine technology during the pandemic. This is one of the many projects which we hope will give women longer, better lives, free from the fear of cancer.”
For more on using the latest lab discoveries to improve patient outcomes with vaccines, get your tickets to the Congress in Barcelona this month, and don’t forget to subscribe to our weekly newsletters here.
by Charlotte Kilpatrick | Oct 3, 2024 | Global Health |
WHO announced in October 2024 that it is launching the Global Strategic Preparedness, Readiness, and Response Plan (SPRP) to tackle dengue and other Aedes-borne arboviruses. The Plan is intended to reduce the burden of disease, suffering, and deaths from dengue and other Aedes-borne arboviral diseases, like Zika and chikungunya, by “fostering a global coordinated response”. It presents priority actions to control transmission and offers recommendations to affected countries across various sectors. With five “key components”, the Plan is to be implemented over one year until September 2025, demanding US$ 55 million.
“The SPRP is a call to action for all stakeholders – from government agencies and health-care providers to communities and individuals – to join forces in the fight against dengue and other Aedes-borne arboviruses, through innovation, new technologies, and improved vector control strategies.”
Turning the tide
In the foreword by WHO Director-General Dr Tedros Adhanom Ghebreyesus we learn that dengue has “afflicted humanity for centuries, and possibly longer”; the first report of a clinically compatible case is recorded in a Chinese medical encyclopaedia in 992. From a much more contemporary perspective, dengue has spread “rapidly” in the past 20 years, enabled by “increased global travel and the effects of climate change”. Between 2000 and 2019, WHO documented a “tenfold surge” in reported cases, to 5.2 million. Since then, the surge has continued; over 12.3 million cases were reported by the end of August 2024.
The global prevalence and effects of arboviruses like dengue are a “significant threat to public health”, particularly in tropical areas where they are endemic. Addressing this threat demands a “concerted, strategic, and informed response”, which the Director-General hopes to achieve with the SPRP, a “comprehensive plan” to outline ways of controlling Aedes-borne arbovirus transmission in affected countries.
“Our multifaceted approach emphasises integrated surveillance, laboratory diagnosis, vector control, community engagement, clinical management, and research and development.”
This approach should reduce the burden of disease, save lives, and minimise the socioeconomic consequences of these diseases. Furthermore, the Plan includes measures for “safe programming” to ensure interventions are “secure and do not exacerbate the risk” for those who are already vulnerable to disease or those involved in responding to the crisis. Dr Tedros states that prevention and control is a “shared responsibility”.
“Together, we can turn the tide against this disease, protect vulnerable populations, and pave the way for a healthier future.”
Understanding the threat
Dengue is a challenge across all of WHO’s regions, endemic in more than 100 countries. Various factors, such as unplanned urbanisation and the effects of climate change, fuel the spread of dengue and other Aedes-borne arboviruses, such as Zika and chikungunya, putting more than four billion people at risk. The growing threat must be addressed with a “robust and dynamic strategy” that accounts for the current global epidemiological landscape. This is complicated by the “still developing” global surveillance system.
Transmission drivers like the effects of climate change and population growth can explain the increase of these infections in some areas, but they also point to the need for a multisectoral approach to prevent and respond to outbreaks.
The Plan
The Plan is intended to “reduce the burden of disease and deaths from dengue and other Aedes-borne arbovirus diseases in all affected WHO regions”. The strategic objective is “to accelerate progress in preventing and controlling dengue and other Aedes-borne arboviral disease outbreaks worldwide”, with the following specific objectives:
- Strengthen global multisectoral coordination and collaboration among stakeholders and partners in preparedness, response, and resilience to dengue and other Aedes-borne arbovirus diseases
- Enhance the capacity of Member States in early detection, reporting, confirmation, and response to outbreaks of dengue and other Aedes-borne arboviruses
- Strengthen the capacity of Member States to implement effective vaccination and integrated vector management strategies for mitigating the transmission of dengue and other Aedes-borne arboviruses
The SPRP combines strategic interventions tailored to local contexts and leverages inter-stakeholder synergies to “confront the challenges” posed by these diseases and move closer to controlling them. The following “interconnected pillars” are included in the multidisciplinary approach:
- Leadership, coordination, planning, monitoring, and prevention of sexual misconduct
- Risk communication and community engagement (RCCE) and infodemic management
- Surveillance, case investigation, and contact tracing
- Travel, trade, and points of entry surveillance and control
- Laboratory and diagnostics
- Integrated vector management and WASH & IPC
- Clinical management and therapeutics
- Operational support and logistics
- Essential health services and systems
- Vaccination
- Research, innovation, and evidence
The 5Cs
The SPRP aligns with WHO’s 2023 Framework for Health Emergency Prevention, Preparedness, Response, and Resilience (HEPR) with a focus on five “core health emergency components”:
- Collaborative surveillance
- Strong national integrated disease, threat, and vulnerability surveillance,
- Effective diagnostics and laboratory capacity for pathogen and genomic surveillance
- Collaborative approaches for event detection, risk assessment, and response monitoring
- Community protection
- Community engagement, risk communication, and infodemic management
- Population and environmental public health interventions
- Multisectoral action for social and economic protection
- Access to countermeasures
- Fast tracked research and development
- Scalable manufacturing platforms
- Coordinated supply chains and emergency
- Emergency coordination
- Strengthened workforce capacity for health emergencies
- Strengthening health emergency preparedness, readiness, and resilience
- Health emergency alert and response coordination
- Safe and scalable care
- Scalable clinical care during emergencies
- Protection of health workers and patients
- Maintenance of essential health services
How do you think the SPRP can be effectively translated into specific contexts and implemented sustainably?
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by Charlotte Kilpatrick | Oct 1, 2024 | Global Health |
A study in PLOS Global Public Health in September 2024 compares the WHO and Medicines Patent Pool (MPP) mRNA technology transfer programme with the approach and practices of current biopharmaceutical production. The programme launched in June 2021, with a hub in South Africa, and is intended to increase vaccine manufacturing capacity in low- and middle-income countries (LMICs) in response to the “vaccine apartheid” of the COVID-19 pandemic. The study finds that, despite improvements to the sharing of knowledge, other features are “in line with the status quo”.
Addressing “vaccine apartheid”
During the COVID-19 pandemic “vaccine apartheid” was used to describe the unequal distribution of vaccines against COVID-19. To address this disparity, WHO chose Afrigen Biologics to “change the global landscape of biopharmaceutical production” by developing an mRNA COVID-19 vaccine and distributing the technology to manufacturers in low- and middle-income countries (LMICs).
“Building capacity to make vaccines locally for local populations became imperative.”
WHO identified a model of knowledge-sharing that had been used in efforts to make the global influenza virus sharing network more accessible and useful to people in LMICs. The Medicines Patent Pool (MPP) was assigned the responsibility of managing the mRNA programme’s fundraising and legal needs.
“The programme has the potential to be transformative as a model of vaccine production, encompassing both upstream research and development (R&D), and ‘end-to-end’ vaccine manufacturing.”
However, the initiative faces “several risks”, such as “precarious levels of funding”, the threat of patent litigation by establish manufacturers, and a variety of governance issues as it seeks to develop the capacity for producing high-quality mRNA-based technologies to protect against a range of diseases.
The study
The authors used qualitative research methods to explore the extent to which the WHO/MPP-managed programme differs from current biopharmaceutical production. The “situational analysis” combined data collection and analysis of multiple data sources. In document analysis they analysed “multiple types of documents”, including legal documents, agreements, correspondence, and patent applications.
The approach also involved a purposive sampling strategy, engaging people in leadership positions. Interviews were conducted with executives and officials, scientists, WHO and MPP officials (the “programme’s architects”), representatives from vaccine manufacturers across the world (“programme partners”), and scientists and experts from the global North. The study begins by exploring the programme’s origins, from 2020 to 2021, before comparing its design to four paradigmatic features of global biopharmaceutical production as identified in literature and “numerous scholarly disciplines”:
- Weak conditionalities attached to publicly funded science
- Secret, transactional R&D partnerships
- A high degree of financialization
- Market-based governance
The origin story
The authors describe WHO’s efforts to improve access to COVID-19 interventions as “markedly” different in approaches to mitigating access challenges and the actors involved.
The Access to COVID-19 Tools Accelerator (ACT-A), launched in April 2020, combined public and private actors. The vaccine arm of ACT-A, COVID-19 Vaccines Global Access (COVAX), was intended to procure vaccines for LMICs through the collective purchasing power of high-income countries (HICs). However, this effort was hampered by HICs prioritising domestic populations, “at the expense of equitable global distribution”.
The COVID-19 Technology Access Pool (C-TAP) was established in May 2020, contrasting ACT-A’s charity-based approach with an effort to distribute control of intellectual property (IP), data, and knowledge. This “pooling” of technologies to address population needs in LMICs was “applauded by civil society but fiercely contested by industry, its allies, and the Gates Foundation”.
A third proposal emerged, centred on building capacity “in LMICs for LMICs”, driven by WHO’s lead coordinator for vaccine research, Dr Martin Friede, and Chair of MPP’s Governance Board and former WHO Assistant Director-General, Dr Marie-Paule Kieny. They reflected on the “hub and spoke” model of manufacturing that had been used in the context of influenza vaccines, imagining a “centralised knowledge sharing system with a view to enhancing local vaccine production capacity in LMICs”. There were “crucial questions” about how this model would work in the context of COVID-19.
WHO’s Erika Dueñas Loayza suggested that the initial plan was to embed the COVID-19 hub within C-TAP. In the face of growing industry opposition to C-TAP, the WHO Assistant Director General of Access to Medicines and Health Products at the time, Dr Mariângela Simão, and WHO Chief Scientist at the time, Dr Soumya Swaminathan, elected to move the programme closer to the ACT-A. In this context, WHO issued a call for expressions of interest for technology transfer hubs in April 2021.
Afrigen responded to this call, with Chief Executive Professor Petro Terblanche identifying an opportunity: “we are small, but we know tech transfer”. Professor Terblanche assembled a “consortium” with Biovac and the South Africa Medical Research Council (SAMRC) to apply. This appealed to Dr Friede, who commented that the consortium, and its location, were “attractive”.
Although Afrigen was announced in June 2021, Bio-Manguinhos in Brazil presented a proposal for ‘end-to-end’ mRNA manufacturing capacity transfer. Then head of vaccine innovation, Dr Sotiris Missailidis, reflected that the early impression given was that “the model was going to be a decentralised. Model” with several hubs, each with spokes.
“What I didn’t know was that, at some stage, […] there was a decision taken from WHO or whoever, that as there was increasing political and financial pressure, many people wanted to come in. […] So the decision was taken to have on central hub and everybody else would be spokes.”
The study authors convey a sense of confusion about the hub/spoke situation well into 2022. In 2024, the programme “continues to evolve”, encompassing a “diverse array of actors”. The fourteen LMIC-based “spokes” are now known as “partners” because of “negative connotations”.
Quid pro quo
The “first defining feature” of biopharmaceutical production relates to the “limited quid pro quo” that the public sector expects in return for supplying private actors with financing, R&D, and product leads. Weak conditionalities are often attached to government and philanthropic funding of biopharmaceutical R&D.
“Conventional wisdom is to grant maximum discretion to recipients of public funding, including universities and government laboratories, as well as private actors about how to commercialise biopharmaceuticals.”
From this, the authors infer that the state’s role is to subsidise, not shape, innovation. Funding for the mRNA programmes comes from governmental sources through MPP, which secured commitments from France, the European Commission, Germany, Norway, Belgium, and Canada, as well as the South African government and the African Union. The donors have committed US$117 million to the programme, which is expected to be “self-sustaining” by 2026. These funders have “shaped the programme in multiple ways”.
For example, Germany reserved funding for a staff position at the hub, but the requirement for a French or German national meant that Afrigen was unable to fill the position. Canada, the second largest donor country, stipulated that its funding should be allocated to the Cape Town hub and four countries hosting manufacturers: Senegal, Nigeria, Kenya, and Bangladesh.
“According to one interview participant, while HICs are supportive of transferring technology to LMICs, they would prefer that such transfers do not extend to the more upstream inputs into mRNA vaccine production, including novel LNPs and antigens.”
A “critical question” for the authors is if the funding secured for the programme has been “leveraged into a shared set of commitments geared towards improving equitable access”. Relationships are defined by legal agreements drawn up by MPP, granting LMIC partners a “non-exclusive, royalty-free, non-sublicensable, non-transferable, irrevocable, fully paid-up, royalty-free license” to the technology and rights held by Afrigen and Biovac to “make, or have made, use, offer for sale, sell, have sold, export or import” in their respective territories and other LMICs. LMIC partners must grant MPP a global, non-exclusive, royalty-free license to “practice and have practiced the data and the Inventions for the purposes of fulfilling its mission” that is “non-transferable, but sub-licensable”.
The “pooled, multilateral approach to knowledge production” is “rare” for the sector, which is attributed to the fact that MPP was in a “fundamentally different position”. However, the authors identify several “notable incongruities” in the legal architecture, with a risk of “fragmenting the larger, collective enterprise of improving equitable access”. For example, some partners have still not signed on, and an “unevenness” between LMIC partners and SAMRC-funded laboratories is “embedded in the programme”.
Another feature of the programme’s funding implications is that MPP “stopped short” of requiring products to be priced affordable outside a public health emergency of international concern (PHEIC). As the pathogens targeted by various partners, such as TB and malaria, are not currently designated as PHEICs, the programme does not constrain pricing decisions. Instead, there is an “assumption” that the products brough to market will “of necessity, be affordable”, to ensure LMIC governments pay for them.
On the other hand, SAMRC funded projects must ensure that “resulting products” are “available and accessible at an affordable price”. This enforceability of this expectation is called into question by a lack of experience.
“The programme’s approach reduces the pursuit of equitable access to the task of fostering more localised production. This is a logical step towards addressing local population health needs. But localised access is never guaranteed.”
Licensing limits
Partnerships in the “dominant model” of biopharmaceutical production tend to “secret and transactional in nature”, with agreements shrouded with confidentiality conditions. More open arrangements are therefore “relatively uncommon”. At the time of applying to WHO, the consortium expected to receive technology transfer from an established mRNA manufacturer. However, they “didn’t even want to talk”, so the project became a “green fields vaccine innovation”. As the journey evolved, knowledge gaps emerged and were addressed, often with the “help of outsiders”. This was occasionally “coupled with a commitment to assist Afrigen or another consortium member in gaining internal capacity”.
“Participating in the programme is a business opportunity.”
The programme’s architects are “walking a fine line between trying to seed collaboration” and “trusting all involved to thread the commitments to IP access throughout that evolving web of relationships”.
MPP as a “power broker”
Another feature of the biopharmaceutical sector is the industry’s “highly financialised character”, evident in many firms’ decisions to become publicly traded or on stock exchanges. This has implications for the strategic direction of these firms and product prices. There is “no indication” that the mRNA programme mirrors the financialization of more established biopharmaceutical companies. However, MPP’s role as an intermediary “simultaneously adds value to, and imposes a drain upon”, the programme, which the authors suggest is “not the optimal way to provide technology transfer”.
Some interviewees comment that MPP’s technology remote transfer group seems to be “micromanaging”, striving to “be in charge of everything”. If the programme fails, it would be “because of that kind of dynamic, not because the science doesn’t work”. Additionally, there is concern that MPP’s “presence and philosophy” may not work to the advantage of different participants in the programme, with one interviewee questioning why MPP and the Gates Foundation are not working together.
Market-based governance
The final feature of the “status quo” is that the direction of biopharmaceutical prodcution is “concentrated in the hands of powerful, private actors that are, at bottom, governed by the market”. Afrigen has directed its mRNA product development towards 11 potential diseases, with Professor Terblanche suggesting that priorities have not been shaped by the prospect of financial gains. She looks for the “unmet need”, but acknowledges that she may be “forced to prioritise”.
The lack of pricing commitments in Afrigen’s Grant Agreement with MPP “could be interpreted as an incentive for Afrigen to commercialise its technology” or a suggestion that the architects “did not contemplate” Afrigen generating mRNA products of its own. The potential for Afrigen to “yield to market forces” is recognised by the architects.
“The near inevitability of Afrigen’s exit in the eyes of those who designed the programme speaks to an underlying failure of imagination concerning how the mNRA programme is governed.”
The privatised governance strategy “preserves the programme architects’ control”. Indeed, the governance structure excludes “direct representation from LMIC governments”. These choices “reflect the programme’s alignment with the dominant, market-driven approach” of biopharmaceutical production.
Sticking with the status quo?
The authors find that the programme “does not substantially depart from” at least three of the four identified “status quo” features. They conclude that to “realise technology’s emancipatory potential”, more attention should be directed to “social context and structural challenges”. Their analysis shows that “the needs and perspectives of LMICs are not sufficiently centred in the programme” and that the programme works within the existing biopharmaceutical production system without relinquishing architects’ control.
“There is a significant risk that the programme, which is claimed by WHO and MPP as a collective effort to improve manufacturing capacity in LMICs for LMICs, will not solve the problem of equitable access to biopharmaceutical innovation.”
Do you agree with the concerns raised by the authors in the study? How can they be addressed quickly and effectively in the current context, or would you expect to see lessons learnt in preparation for future efforts? To share your perspectives on initiatives to improve access to essential vaccine technologies, join us at the Congress in Barcelona next month, where we look forward to welcoming Professor Terblanche among experts on the subject. Don’t forget to subscribe to our weekly newsletters for more vaccine news.
by Charlotte Kilpatrick | Sep 30, 2024 | Global Health |
Gavi announced two major funding updates at the United Nations General Assembly High-level week 2024, revealing that it is making progress in its fundraising efforts for the upcoming strategic period. The first of these updates is that the European Commission has pledged funding for the first two years of Gavi 6.0, complementing “strong support” from Team Europe and contributing to Gavi’s goal of helping to protect 500 million more children around the world. Gavi also announced an expanded collaboration with the United States International Development Finance Corporation (DFC), focussed on donor liquidity.
European support
The President of the European Commission, Ursula von der Leyen, addressed a crowd at the Global Citizen Festival on Saturday 28th September, revealing a funding pledge of €260 million for 2026-2027 and promising more to follow. The funds will support Gavi’s 2030 ambition of providing protection to 500 million more children, strengthening immunisation systems, and boosting global health security by “increasing readiness to respond to disease outbreaks”.
Added to the money pledged so far by the United States, France, Spain, and others in June 2024, this pledge takes Gavi’s total for the next strategic period to US$2.7 billion. The target is at least US$9 billion, which would enable Gavi to protect more children against more diseases, faster, and protect the world from outbreaks of disease when they occur. The €260 million pledge is for the first two years of Gavi’s upcoming strategic cycle, which coincide with the last two years of the EU’s 2021-2027 Multiannual Financial Framework (MFF). The European Commission is expected to remain committed to a “high level of ambition in supporting Gavi” as it prepares for the next MFF.
President von der Leyen reflected that “a healthier world is a better world”, with vaccination “one of our best chances for this”.
“Right now, millions of children are still at risk. We must continue to support vaccination around the world to save lives. So today I am proud to pledge 260 million euros for Gavi, the Vaccine Alliance. And more will come.”
DFC collaboration
The DFC and Gavi will expand their partnership with a focus on donor liquidity. This builds on support established during COVID-19, with the US$1 billion Rapid Financing Facility allowing Gavi to access funds quickly in the event of new donor pledges for pandemic response or routine immunisation. The mechanism is also central to Gavi’s Day Zero Financing Facility.
Nisha Biswal, DFC Deputy CEO, recognised that “global health security is economic and national security”. DFC invests in healthcare services, supply chains, and technology to strengthen pandemic preparedness and health system resilience, including over US$3 billion in health-related projects to enable over 50 million patients access healthcare.
“With the new Surge Financing Initiative, the expanded Gavi liquidity facility, and investments in regional manufacturing, we will be able to do far more to expand access to life-saving healthcare products, especially during health emergencies.”
Still on track
Dr Sania Nishtar, CEO of Gavi, expressed gratitude to the European Commission, recognising President von der Leyen’s “leadership in advancing global health outcomes” and DFC.
“Thanks to the European Commission and DFC, we remain on track to meet our target of protecting people, communities, even our entire world through immunisation.”
For more on global health investments at the Congress in Barcelona next month, get your tickets to join us here. Don’t forget to subscribe to our weekly newsletters for the latest vaccine news.
by Charlotte Kilpatrick | Sep 30, 2024 | Infection |
In September 2024, WHO’s Regional Office for Africa announced that Rwandan health authorities are “intensifying outbreak control efforts” after detecting Marburg virus disease in the country for the first time. 26 cases have been confirmed in seven of the country’s districts, and six deaths have been reported. The health authorities are implementing “comprehensive response measures” and an investigation to determine the origin of the outbreak. WHO states that it is supporting these efforts with expertise and tools.
Cases reported and response triggered
26 cases have been reported; 20 are in isolation and receiving treatment, and six deaths have been recorded. 161 contacts of the reported cases have been identified so far and are being monitored. The Ministry of Health, Rwanda, posted a video on social media with a caption reassuring viewers that “people can continue with their daily activities” and “should not panic” as the “hotspots of the disease” have been identified.
WHO is “mobilising” expertise and outbreak response tools to “reinforce the control measures” that are being rolled out. A consignment of clinical care and infection prevention and control supplies will be delivered from the WHO Emergency Response Hub in Nairobi, Kenya, to Kigali in the next few days. Efforts are also underway to “reinforce collaborative cross-border measures for readiness and response” in countries that neighbour Rwanda.
WHO Regional Director for Africa, Dr Matshidiso Moeti, explained that the critical outbreak response aspects are being put in motion “rapidly” to “halt the spread of this virus swiftly and effectively”.
“With the country’s already robust public health emergency response system, WHO is collaborating closely with the national authorities to provide the needed support to further enhance the ongoing efforts.”
Marburg
Marburg virus disease is a “highly virulent” member of the filoviridae family and causes haemorrhagic fever. It has a fatality ratio of up to 88%, with symptoms progressing rapidly after infection. The virus is transmitted to humans from fruit bats and spread among people through direct contact with the bodily fluids of infected people, surfaces, and materials.
The disease was first recognised after large outbreaks in Germany and Serbia in 1967, associated with laboratory research involving African green monkeys from Uganda. Outbreaks and cases have been reported sporadically since then, and efforts have been made to develop effective medical countermeasures. However, there is no licensed vaccine against Marburg virus disease.
A confluence of infectious disease
The Marburg outbreak will increase pressure on the Rwandan health system, which is already fighting its mpox outbreak, declared on 27th July 2024. In September 2024, Dr Jean Kaseya, Director-General of Africa CDC, reported that Rwanda had begun an mpox vaccine campaign after receipt of 1,000 doses. The campaign targeted districts bordering the Democratic Republic of the Congo, the epicentre of the current PHEIC. How will the health services respond effectively to both infectious disease threats, and will there be similarities or ‘doubling up’ in their strategies?
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by Charlotte Kilpatrick | Sep 27, 2024 | Global Health |
WHO and TikTok announced a year-long collaboration to provide “reliable, science-based health information” in September 2024. The partnership seeks to address the challenges of misinformation and disinformation on digital channels by “promoting evidence-based content and encouraging positive health dialogues”. TikTok is a social platform where users create and share short-form videos.
The Fides network, a “network of healthcare influencers” who seek to share “good health content” and tackle misinformation, was launched in 2020. It has over 800 creators with a reach of 150 million people on various platforms. Network creators across the globe will be joining TikTok to create and promote evidence-based content. TikTok is also making a $3 million donation to support WHO’s work on “destigmatising mental health conditions and creating an informed, empathetic, and supportive online community”.
Social channels as a source
WHO recognises that social media platforms are important sources of information that can influence health-related behaviours and decisions. It states that one in four young adults seeks news content on social media platforms such as TikTok. However, these digital channels are increasingly allowing the distribution of misinformation and “malinformation”. Thus, the collaboration will “expand efforts” on several health topics, making science-based information “relatable and digestible”, and offering support for influencers through TikTok’s creator training programmes.
WHO’s Chief Scientist Dr Jeremy Farrar hopes that the collaboration will prove to be an “inflection point in how platforms can be more socially responsible”.
“The intersection of health and technology presents an opportunity to reach people of all ages, where they are, when they want to access. By working with TikTok and others, we are helping people access credible information and engage in scientific discourse that collectively helps shape a healthier future for all.”
Dr Alain Labrique, WHO’s Director of Digital Health and Innovation, reflected that “creators who understand their audience’s needs have a unique opportunity to bridge the gap between science and everyday life”.
“This is where WHO can step in to support influencers in delivering evidence-based information, ensuring that health conversations on platforms like TikTok are both impactful and informed.”
TikTok’s Global Head of Trust and Safety, Outreach and Partnerships, Valiant Richey, commented on the importance of TikTok’s commitment to providing “reliable information”.
“We are delighted to be partnering with the World Health Organisation’s Fides network of healthcare content creators to further strengthen this commitment by bringing engaging and authoritative mental well-being content to our community.”
Creators leading the field
Dr Timothy Tiutan has created a community of almost 2 million followers on social media and hopes that the initiative will enable creators to “empower communities to live healthier lives”.
“The network tackles global health challenges in an era where access to health information has dramatically evolved. WHO Fides is a driving force in shaping a healthier, more informed global community for the future.”
Avisha NessAiver specialises in translating research into accessible language and has worked with Fides and the UN as part of “Team Halo”. His content has reached over 100 million views on various platforms.
“The Fides network is the catalyst transforming isolated scientists and health experts into a powerful collective force, armed with shared knowledge and strategies to effectively combat the spread of health misinformation.”
Do you think this initiative will be an effective way of engaging social media users in reliable information? Or will the partnership ruffle feathers online and in the lab?
To discuss the importance of effective communication and translating the latest research into accessible content with your colleagues at the Congress in Barcelona next month, get your tickets here, and don’t forget to subscribe to our weekly newsletters here.
by Charlotte Kilpatrick | Sep 25, 2024 | Global Health |
At the United Nations General Assembly High-Level Week in September 2024, CEPI launched a new Biosecurity Strategy to bolster global health security and emphasise its commitment to addressing emerging epidemic threats. The strategy draws on the latest technologies and encourages international collaboration to mitigate the risks presented by emerging pathogens. This is a “significant step” in the “evolution” of CEPI, positioning it as a “though leader in the rapidly developing fields of biosafety and biosecurity”. Chair of CEPI’s Board, Professor Jane Halton, positioned the 100 Days Mission at the centre of this strategy and highlighted the significance of “security and equity” in this effort.
“To underpin that strategy, and to ensure the world can achieve the 100 Days Mission goal safely and securely, we need a robust, collaborative approach to maximising the benefits of new technologies and reducing their potential threats to human health.”
Remaining vigilant and stepping up
Dr Richard Hatchett, CEO of CEPI, writes in the foreword of the importance of remaining “vigilant” and being able to respond quickly to infectious disease outbreaks in an era of “heightened epidemic and pandemic risk”. He reflects that COVID-19 demonstrated the “devastating global consequences” of a pandemic and, through the “persistent controversy” over the origins of the pandemic, heightened awareness of the risk of accidental release and deliberate misuse of science.
“Most risk created by advances in the biological sciences derives from the fungibility of the tools designed to solve specific problems. The tools that will solve a pressing problem are empowering – but there is no intrinsic limit to their application.”
Dr Hatchett acknowledges the problem of “dual use” in the way that biologists tackle problems. However, he warns against imposing limits on scientists, suggesting that this could present “practical challenges” and “impede our progress towards legitimate and worthy goals”, among which is the 100 Days Mission.
“Global scientific participation is critical to the success of the 100 Days Mission and will enable vaccine research, development, and manufacturing to take place in communities that need it, led by those who will benefit from it, and informed by the priorities of the vulnerable communities that are disproportionately impacted by epidemics and pandemics.”
To address the risk of accidents or misuse, Dr Hatchett highlights the importance of mechanisms to “ensure that the highest, most current standards of biosecurity and biosafety are practiced and maintained”. CEPI’s “highly diverse” research portfolio includes more than 50 countries, each with “highly variable” oversight practices. The need for a biosecurity strategy is directed by a recognition that “as a steward of global funds, no matter where those funds are deployed, we have a critical responsibility to ensure that the research we fund does not lead to the next accident or deliberate incident”.
‘Beyond this threshold obligation, CEPI also has an opportunity to step-up as a thought leader in this emerging area.”
In developing the strategy, CEPI engaged more than 150 entities in the global health and security ecosystems in a consultative process and sought advice from a Biosecurity Strategy Group. Although technological capabilities will evolve and “boundaries blur between disciplines”, the strategy anticipates that “traditional approaches” may prove “inadequate” in the face of emerging threats. Thus, stakeholders must collaborate and develop mechanisms to encourage responsible use, supported by CEPI.
Biosafety and biosecurity
The strategy acknowledges the evolution of the terms biosafety and biosecurity, comparing the WHO (2024) definition of biosecurity with FAO’s (2007) understanding of the term. CEPI’s biosecurity and biosafety priorities must align with its mission to accelerate vaccine development towards the 100 Days Mission. The strategy outlines how an “innovative approach…frontloaded towards preparedness”, can enable the safe and secure delivery of this goal.
Top vulnerabilities
Several biosecurity and biosafety vulnerabilities are identified and considered relevant to the strategy:
- Variable biosafety and biosecurity oversight, risk identification, and management practices among life science funders for research involving high consequence pathogens, including CEPI.
- Substantial variations in biosafety and biosecurity policies, regulations, practices, and competencies where CEPI-funded research takes place, and insufficient health and security collaboration.
- The intersection between biosecurity and equity is insufficiently recognised, which threatens progress towards the 100 Days Mission and future responses to epidemic and pandemic threats.
- Emerging biotechnology and converging technologies present dynamic and evolving biosecurity risks that threaten 100 Days Mission progress.
- The world is insufficiently harnessing technological innovation to reduce safety and security vulnerabilities of the 100 Days Mission.
Focus and priorities
CEPI’s biosecurity focus is to “protect society from epidemic and pandemic threats, with an emphasis on preventing accidental and deliberate misuse of pathogens associated with CEPI-sponsored research”. The strategy therefore addresses global biosecurity vulnerabilities to accelerate current strategic goals with the following priorities:
- Strengthen biosafety and biosecurity risk identification, mitigation, and oversight by CEPI and encourage similar efforts by other life science research funders.
- Enhance global biosafety and biosecurity capabilities of CEPI partners for achieving the 100 Days Mission safely and securely and promote health-security partnerships.
- Drive biosecurity and biosafety in support of equity.
- Monitor and reduce emerging biotechnology and converging technology risks across CEPI’s vaccine research, development, and manufacturing portfolio.
- Accelerate biosafety and biosecurity innovation for vaccine research, development, and manufacturing.
More to come
An implementation plan of activities, goals, and timelines will follow the strategy. It will explore how priorities can be integrated into the wider mission and mandate in three major categories:
- Catalysing strategic partnerships and coalitions
- Advocacy and coordination
- Supporting biosafety and biosecurity capabilities development
Director General of Africa CDC, Dr Jean Kaseya, expressed enthusiasm at the strategy launch and its support of Africa CDC’s efforts.
“With a focus on laboratory systems strengthening, training and infrastructure development, and reducing risks of artificial intelligence and other innovations, the strategy is informed by vulnerabilities across a wide range of resource settings and will help galvanise global progress toward safely and securely achieving the 100 Days Mission.”
Trevor Smith, Deputy Director at Global Affairs Canada and member of the CEPI Biosecurity Strategy Group, welcomed the focus on “effective collaboration between the health and security sectors”.
“The strategy articulates an ambitious vision for reducing vulnerabilities and strengthening global health security.”
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by Charlotte Kilpatrick | Sep 10, 2024 | Global Health |
A study in CMAJ in September 2024 evaluates the cost-effectiveness of different age cut-offs for RSV adult vaccination programmes, with or without a focus on people with higher disease risk. The authors compared alternative age-, medical risk-, and age- and medical risk-based policies. They found that, although all vaccination strategies “averted medically attended RSV disease”, universal age-based strategies were a less efficient use of resources than medical risk-based strategies.
The study
By May 2024, two RSV vaccines were approved for use in Canada in adults aged 60 years and older: RSVPreF3 and RSVpreF. The researchers performed a model-based cost-utility analysis of RSV vaccination programmes in the Canadian population aged 50 years and older. They developed a static individual-based model of medically attended RSV disease to consider the effects of various policies on RSV-associated outcomes. The model followed a multi-age closed population of 100,000 people over a 3-year period. Individuals were characterised by the presence or absence of 1 or more chronic medical conditions.
The authors evaluated a combination of age-only, medical risk-only, and age- plus medical risk-based single-dose vaccination strategies:
- Age-based: all people the same age or older than the specified age cut-off were eligible to receive the vaccine.
- Medical risk-based: only people aged greater than or equal to the specified age cut-off who also had 1 or more chronic medical conditions were eligible to receive the vaccine.
- Age- plus medical risk-based strategies: people were eligible to receive the vaccine if they met an age requirement, or if they were younger and had at least 1 chronic medical condition. A lower age bound was evaluated for these strategies.
Study results
Results were “not appreciably different” for the 2 vaccines evaluated. For both vaccines, a programme that focused on vaccinating people with at least 1 chronic medical condition aged 70 years and older was the “optimal” strategy for a cost-effectiveness threshold of $50,000 per quality-adjusted life year (QALY). Lowering the age recommendations to people with at least 1 chronic medical condition aged 60 years and older resulted in sequential incremental cost-effectiveness ratios (ICERs) of around $100,000 per QALY gained compared with a medical risk-based policy for those aged 70 years and older.
“Age-only strategies were never identified as cost-effective options regardless of the cost-effectiveness threshold used, when compared with other strategies.”
Vaccinating adults aged 80 years and older resulted in sequential ICERs of $3261-$5391 per QALY gained. Lowered age recommendations to 75 years and older required a cost-effectiveness threshold of approximately $80,000 per QALY.
Conclusions
The analysis highlights that the strategies that focussed on adults with underlying medical conditions putting them at increased risk of RSV disease are more likely to be cost-effective than general age-based strategies. Vaccination of older adults may be “less costly and more effective” than no vaccination, and vaccinating people aged 70 years and older with chronic medical conditions is “likely to be cost-effective”. Broader programmes may also be more cost-effective in settings with higher risk of disease and health care costs.
The authors conclude that RSV vaccination programmes have the potential to avert a substantial burden in older adults if appropriately targeted.
“RSV vaccination programmes in some groups of older Canadians are expected to be cost-effective, with programmes focusing on people with underlying medical conditions that place them at increased risk of severe RSV disease expected to provide the best value for money.”
For more on RSV vaccine development and strategies for adult immunisation programmes at the Congress in Barcelona, get your tickets now. Don’t forget to subscribe for weekly vaccine updates.
by Charlotte Kilpatrick | Sep 5, 2024 | Global Health |
In response to the mpox outbreak, declared a PHEIC by WHO and a PHECS by Africa CDC, the two organisations announced that they are co-leading a “coordinated, continent-wide response”. The Mpox Continental Preparedness and Response Plan for Africa describes “essential priorities” to control the current outbreak, focusing on ten pillars. The plan categorises Member States into four risk-based groups to ensure efforts and resource allocation are targeted. The estimated budget for September 2024 to February 2025, excluding the cost of vaccines, is US$599,153,498
Collective commitment
In the foreword by Africa CDC Director General Dr Jean Kaseya and WHO Africa Regional Director Dr Matshidiso Moeti, the declaration of mpox as a PHECS is described as a “bold move”. This was followed by WHO’s declaration, reflecting “alignment” and “collective commitment to raising awareness, mobilising resources, and galvanising action at all levels”. Drs Kaseya and Moeti state that current “battle” against mpox has been shaped by “hard-earned lessons” from the COVID-19 pandemic.
“The experience of COVID-19 exposed vulnerabilities in our health systems, showed Africa’s inequity and unfair treatment in terms of access to medical countermeasures, highlighted the urgent need for enhanced preparedness, and underscored the importance of swift, coordinated action in the face of emerging health threats.”
The “foundation” of the mpox response is built on lessons of “solidarity, resilience, and collaboration”.
4-ONE
A new approach is outlined: a “4-ONE APPROACH”:
- ONE coordination mechanism
- ONE continental response plan
- ONE budget
- ONE monitoring and evaluation mechanism
Africa CDC and WHO will lead efforts to implement the “unified approach” with global and continental stakeholders. The plan is a “roadmap” to facilitate a “coordinated, comprehensive, and evidence-based response” that puts the principles of “equity, inclusivity, and accountability” at the centre.
“As we move forward, we are guided by our strong commitment to protecting the health of all Africans, enhancing our collective resilience, and securing a healthier future for our continent. Together, we will overcome this challenge and build a stronger and resilient Africa.”
Mpox: then and now
Mpox was first described in the Democratic Republic of Congo (DRC) in 1970. It is a viral zoonotic illness that has caused “numerous outbreaks” since its identification. Although early outbreaks tended to be associated with zoonotic transmission from wildlife to humans, recent cases in urban settings have suggested changes in transmission dynamics.
“The emergence of zoonotic diseases is driven by complex ecological, climatic, political, economic, security, and social factors, some of which are becoming further exacerbated on the continent.”
However, the “warning signs” of local outbreaks are often “neglected” with “limited investigation, surveillance, diagnosis, and response”. Despite improvements in surveillance and reporting systems to enhance the understanding of mpox’s epidemiological patterns, “significant gaps” remain. Mpox virus has two variants: clade I and clade II. Clade I is geographically concentrated around the Central and Eastern Africa region and is considered “more virulent”; Clade II is found in Western Africa and other regions.
In the global outbreak of 2022-2023, the disease spread drew “renewed focus” on medical countermeasures. While many countries outside Africa were “quick to respond”, Africa faced “significant challenges in accessing these crucial tools”. Despite the high burden of mpox in several countries in Africa, access to vaccines and other medical countermeasures was inequitable.
“This lack of access was due to multiple factors, including limited global production capacity, unequal distribution agreements, and a lack of investment in public health infrastructure in Africa.”
Vaccines like JYNNEOS (MVA-BN) and ACAM2000 were widely authorised for emergency use but were “largely unavailable to African countries”. The authors of the plan attribute this to pre-existing contracts between manufacturers and high-income countries. Furthermore, logistical challenges exacerbated the disparity; “inadequate” cold chain storage facilities and distribution networks” created obstacles to the delivery of countermeasures.
“This inequity underscored the urgent need for Africa to develop self-reliance in manufacturing and distributing medical countermeasures to avoid similar scenarios.”
The current situation is concerning; reported cases are increasing in number across the continent. In comparison with 2022, there was a 79% increase in reported cases in 2023. By 3rd September 2024, confirmed cases have exceeded the number reported in 2023 by over 3,700. Furthermore, the recent outbreak has “dramatically” affect children under 15 years (60%). In 2024, 13 countries have reported cases, with a new subvariant of mpox clade I (clade Ib) identified since September 2023. This has been ‘widely circulating” among commercial sex workers and their sexual contacts.
While the increasing cases are worrying, the “true burden” is uncertain. Thus, the authors demand enhanced surveillance and detection. They also highlight the need for vaccination of both targeted and expanded priority population groups, particularly in the context of Africa’s “weaker surveillance systems and limited diagnostic capacity”.
“The Mpox Continental Preparedness and Response Plan for Africa (MCPRPA) seeks to build a stronger foundation for health security in Africa through a country-driven unified approach, prioritising prevention, enhancing immunity at community level, and promoting the continent’s self-reliance.”
Risk categories
The plan classifies African Union Member States according to their mpox status and risk level. The risk level is for “planning and resource optimisation”.
- Experiencing sustained human-to-human transmission: DRC, Burundi, Nigeria, South Africa, Côte d’Ivoire, Central Africa Republic
- Not already falling into category 1 but experiencing sporadic human cases since 1st January 2022 and/or countries that are assessed as having endemic zoonotic reservoirs for mpox: Rwanda, Kenya, Uganda, Sierra Leone, Libera, Ghana, Cameroon, Gabon, Republic of Congo, Morocco, Egypt, Benin, Mozambique, Sudan
- Not already falling into the first two categories that are assessed as requiring readiness including due to proximity to category 1 countries by land, air, or sea: Angola, Zambia, Eswatini, Lesotho, Ethiopia, South Sudan, Tanzania, Malawi, Republic of Guinea
- All other countries
Guiding principles
The plan relies on guiding principles from lessons learnt during the COVID-19 pandemic; the align with the 2023 Lusaka Agenda, which emphasises “strengthening joint approaches for achieving equity in health outcomes, operational coherence, and a coordinate approach to product development and research”.
- Country-driven: The plan focuses on mpox preparedness and response interventions based on priorities identified by affected countries to ensure that the response is tailored to the needs of each country.
- Science-driven: The strategic approaches and key interventions are grounded in the best available scientific evidence, ensuring that the response is effective and adaptive to the evolving understanding of the virus and its transmission.
- Equity and solidarity: Prioritisation of issues and resource allocation should be sensitive to the needs of the most affected regions/provinces, vulnerable groups, and countries most in need. This is supported by global solidarity, ensuring that medical countermeasures are made available to African Member States equitably.
- Unified: Align all partners around a single cohesive plan, ensuring that all stakeholders work toward common objectives, minimising duplication and maximising impact.
- Single collaboration mechanisms: Streamline efforts through coordinated leadership.
- Sustainability: Focus on developing sustainable, long-term solutions that can be scaled and maintained over time, ensuring that countries are better prepared for future outbreaks and that response efforts have a lasting impact.
10 pillars
The plan has 10 pillars, each with a strategic objective and actions.
- Coordination and leadership
- Strategic objective – establish one functional coordination mechanism with one team, one plan, one budget, and one monitoring and evaluation (M&E) framework at continental, national, and subnational levels.
- Actions – enhance harmonised coordination and collaboration between relevant stakeholders including resource mobilisation.
- Risk communication and community engagement (RCCE)
- Strategic objective – support and engage communities, particularly the most vulnerable members, so that they practice key public health recommendations and access the needed services to reduce transmission, morbidity, mortality, and secondary impacts.
- Actions – engage communities in public health response and ensure their perspective and realities drive the mpox response interventions.
- Surveillance
- Strategic objective – establish/enhance functional event-, community-based-, and cross-border mpox surveillance systems at continental, national, subnational levels.
- Actions – strengthen mpox surveillance through event/community-based surveillance, contact tracing, point of entry, and cross-border information sharing.
- Laboratory capacity
- Strategic objective – strengthen mpox laboratory testing and sequencing capacity to confirm at least 80% of suspected mpox cases and sequence at least 5% of epidemiologic and geographic representative confirmed mpox cases.
- Actions – strengthen laboratory testing for diagnostic and sequencing through training and provision of equipment and reagents.
- Case management
- Strategic objective – support comprehensive case management for mpox, including medical, nutritional, and psychosocial care, to reduce the case fatality rate to below 1% (0.5%).
- Actions – strengthen case management for mpox.
- Infection prevention and control
- Strategic objective – strengthen infection prevention and control measures at 80% of health facilities and schools in hotspots of mpox-affected and at-risk Member States to minimise the risk of mpox transmission.
- Actions – strengthen infection and prevention control measures at households, schools, health facilities, and communities.
- Vaccination
- Strategic objective – support the administration of mpox vaccination to 80% of the targeted population.
- Actions – vaccination of targeted and expanded high-risk population groups is a proactive measure to address the delayed responses that can occur due to weaker health systems, weaker surveillance systems, and limited diagnostic capacity. This would build population resilience, reduce the public health impact of mpox, and prevent healthcare systems from becoming overwhelmed. Mpox vaccination will be implemented in two phases. In the first phase, vaccines will be administered to the exposed group of contacts and the contacts of contacts and the expanded group of those at risk. In the second phase, consideration could be given for affected communities, depending on progress in epidemiology and vaccine availability.
- Research and innovation
- Strategic objective – coordinate and conduct mpox operational and clinical research across the continent to address critical knowledge gaps and support response efforts, and coordinate and enhance research and development (R&D) for the manufacturing of countermeasures to ensure rapid deployment during outbreaks.
- Operations support and logistics
- Strategic objective – provide robust operational support, ensuring the safety and security of response staff, maintaining key infrastructure and ensuring the efficient procurement and distribution of essential supplies.
- Actions – ensure robust support by developing standards for mpox supplies, coordinating demand forecasts, enhancing supply transparency and implementing fair allocation, strengthening logistics, and maintaining supply chain integrity for equitable distribution.
- Continuity of essential services
- Strategic objective – advocate for and support Member States to monitor the implementation of basic services ensuring continuity to avert loss of gains.
Budget
The plan also details “key resource requirements” for the first six months of operations. The estimates assume an initial case load of 2,000 cases per week, which increases to 4,000 cases per week in the first two months of operations. This is expected to continue through the fourth month, after which cases might decrease. The total estimated number of suspected cases is 92,000 over the first six months. Vaccine procurement costs are excluded from budget estimates as these depend on the outcome of “ongoing negotiations” with manufacturers.
The overall estimated budget for the six-month plan is US$599,153,498. Of this, 53% (US$315,311,463) are assigned to mpox outbreak response effort in the 13 affected Member States. 2% (US$14,000,000) will support the 15 high risk, non-affect Member States with emergency preparedness and 45% (US$269,842,035) will go toward partners’ operational and technical support.
Monitoring and evaluation
The monitoring and evaluation of the plan are centred on a results-based management approach, ensuring capture and analysis of key performance results information and dissemination for management decision-making, reporting, and stakeholder use.
- Input and output monitoring will be ensured through reporting tools developed by the incident management system (IMS). Periodic and ad-hoc joint support supervision visits will take place and internal review mechanisms will be used to ensure the correctness, completeness, and timeliness of monitoring data.
- The Continental incident management team (IMT) will conduct periodic evaluations of the plan.
- Data collection will be shared with the Continental IMT, which has the primary mandate for its monitoring.
Will this approach be sufficient to control the outbreak and establish mechanisms for future health threats on the continent? For expert insights into equitable vaccine development and deployment, get your tickets to join us at the Congress in Barcelona this October, and don’t forget to subscribe to our weekly newsletters here.
by Charlotte Kilpatrick | Sep 2, 2024 | Global Health |
In August 2024 the UK Department for Environment, Food, and Rural Affairs (DEFRA) announced the launch of a new tuberculosis (TB) eradication strategy to end the badger cull and “drive down” bovine Tuberculosis rates. TB has had a “devastating” effect on British livestock and wildlife in the past decade; over 278,000 cattle have been compulsorily slaughtered, and over 230,000 badgers have been killed. The cost to the taxpayer has exceeded £100 million each year. However, the Government is now introducing a new bovine TB eradication strategy in collaboration with farmers, vets, scientists, and conservationists to “rapidly strengthen and deploy a range of disease control measures”.
The strategy
DEFRA describes the new strategy as a “significant step-change” to the approach, using a data-led and scientific approach to end the badger cull by the end of this parliament. The approach includes:
- The first badger population survey in over a decade – the Government will work “at pace” to launch a new survey this winter to estimate badger abundance and population recovery to illustrate the effect of widespread culling over the past decade.
- A new national wildlife surveillance programme – after a decade of culling, the prevalence of TB in remaining badger populations is “largely unknown”. A surveillance programme will offer an updated understanding of disease in badgers and other wildlife to “unlock a data-driven approach” to inform the deployment of vaccines and other eradication measures.
- A new Badger Vaccinator Field Force – badger vaccinations create “progressively healthier badger populations” that are less susceptible to catching and transmitting TB. The Badger Vaccinator Field Force will increase badger vaccination to drive down TB rates and protect badgers.
- A badger vaccination study – to supplement the Field Force, a rapid analysis of the effect of badger vaccination on the incidence of TB in cattle will encourage farmers to participate and provide greater confidence in the approach.
Further information about animal and herd-level bTB risk will also be published on ibTB, an interactive map that enables cattle farmers and vets to understand the level of bovine TB in specific regions and manage risks accordingly.
Cattle vaccine development
DEFRA is also going to accelerate work on cattle vaccine development, which is “at the forefront of innovative solutions to help eradicate this disease”. The next stage in field trials is to start in the coming months, with the aim of delivering an effective cattle vaccination strategy in a few years and achieving officially TB free (OTF) status for England.
No more devastation
Daniel Zeichner, Minister for Food Security and Rural Affairs, stated that bovine tuberculosis has “devastated British farmers and wildlife for far too long”.
“It has placed dreadful hardship and stress on farmers who continue to suffer the loss of valued herds and has taken a terrible toll on our badger populations. No more.”
The eradication “package” will allow the end of the badger cull and “stop the spread of this horrific disease”. Chief Veterinary Officer Dr Christine Middlemiss agreed that bovine tuberculosis is “one of the most difficult and prolonged animal disease challenges” that causes “devastation for farming communities”.
“There is no single way to combat it, and a refreshed strategy will continue to be led by the very best scientific and epidemiological evidence. With the disease on a downward trajectory, we are at a crucial point.”
Dr Middlemiss highlighted the importance of collaboration to achieve the target of eradicating bovine tuberculosis in England by 2038. John Cross, Chair of the bTB Partnership, is “delighted” to hear the intention to “refresh” the strategy.
“The time is right to look again at the tools we use to tackle this persistent disease. Bovine is the common enemy, not farmers or wildlife groups. Only by working together, we will reach our goal.”
Responses to the announcement
Professor Malcom Bennett, Professor of Zoonotic and Emerging Disease at the University of Nottingham believes a review of bovine TB control in England is “good news for everyone”, particularly the pursuit of a “better understanding of the role of various host populations”. However, “many other important questions remain unanswered”, including diagnostic approaches in cattle and other hosts, and how they can be interpreted in different situations.
“For policy, there may be lessons to be learnt from COVID as well, for example in comparing the costs (in terms of human, animal, and environmental health as well as economics) of the disease with those of the various control options, and how one size policies (in this case, different host species in different places and environmental contexts) might not fit all.”
Professor Bennett suggested that an “open debate” would be “useful, even if we don’t all agree with its outcome”. Indeed, “more openness” would be “welcome”, particularly regarding badger population data. Professor Lord John Krebs, Emeritus Professor of Zoology, University of Oxford, commented that the recognition that culling is “not going to eradicate bovine TB” is a “welcome shift in policy”. Furthermore, the accelerated development of an effective cattle vaccine will “provide a long-term solution”.
“An important missing piece in the press release describing the new strategy is an explicit plan to use more sensitive tests for TB in cattle to help eliminate the hidden reservoir of infection in cattle.”
Ecology consultant Tom Langton took a critical view of the strategy, warning that “DEFRA has fallen behind the level of activity” to achieve targets and would impose changes “with limited visible stakeholder of public engagement”.
“We trust this process will not rush ahead and involve proper stakeholder engagement and not the secret DEFRA committees of the past.”
To participate in discussions about the role of vaccines in animal health efforts, why not get your tickets to join us at the Congress in Barcelona this October? Don’t forget to subscribe to our weekly newsletters here.
by Charlotte Kilpatrick | Aug 27, 2024 | Global Health |
In August 2024 WHO launched a Global Strategic Preparedness and Response Plan (SPRP) to address the mpox public health emergency of international concern (PHEIC), declared on 14th August. The plan, subject to input from Member States, is intended to stop outbreaks of human-to-human transmission of mpox through “coordinated global, regional, and national efforts”. It covers the period September 2024 to February 2025 and is expected to involve a US$135 million funding need; WHO will follow with a funding appeal.
Outbreaks can be controlled
In the foreword, WHO Director-General Dr Tedros Adhanom Ghebreyesus states that the new mpox outbreaks “can be controlled” through “connected action”. The plan provides a “comprehensive approach” and emphasises “surveillance, research, equitable access to medical countermeasures, and community empowerment”.
“Our approach must uphold the principles of equity, global solidarity, community empowerment, human rights, and cross-sector coordination.”
Dr Tedros urges countries to use the plan to “guide their efforts” against the outbreak and “protecting the health and dignity of all”. The Executive Summary describes the need for “substantial resources” and “operational support” and calls for an estimated budget of US$135 million, excluding the cost of procuring around 2 million vaccine doses.
Temporary recommendations
In response to the “escalating” outbreak of different strains of mpox, a Public Health Emergency of International Concern (PHEIC) was declared on 14th August 2024.
“This declaration underscores the severity of the current situation and highlights the urgent need for intensified international collaboration to control the outbreak.”
The existing Standing Recommendations for mpox, issued in August 2023, were set to expire on 20th August 2024. However, the Emergency Committee proposed new Temporary Recommendations in the following areas:
- Strengthened coordination
- Enhanced surveillance and laboratory diagnostics
- Improved clinical care
- International traffic
- Vaccination
- Risk communication and community engagement
- Governance and financing
- Reporting
Strategic objectives
The mpox SPRP is intended to stop outbreaks of human-to-human transmission of mpox and “mitigate its impact on human health”. To achieve this, it sets out three strategic objectives:
- Rapidly detect and control outbreaks
- Advance research and ensure equitable access to medical countermeasures
- Minimise transmission between humans and animals
Vaccines to interrupt transmission
“Enhancing control strategies through strategic vaccination is crucial. Implementing targeted vaccination approaches can help reduce the spread of the virus by focusing on those at the highest risk of infection, thereby reducing overall transmission.”
The vaccination strategy prioritises individuals who are at “substantially higher risk of exposure”. Key considerations include:
- Access and delivery – the plan highlights an “urgent need” to increase access to and delivery of mpox vaccines, particularly in areas with active cases. WHO encourages countries with vaccine stockpiles to make doses available to affected regions and manufacturers to review access and pricing policies to ensure vaccines are affordable and accessible in low- and middle-income countries.
- Security and community engagement – effective strategies should consider the security challenges faced by vaccination teams and communities, especially in areas with “complex socio-political factors and ongoing conflicts”. WHO demands “strong community engagement and risk communication efforts”.
The plan proposes a phased vaccination strategy:
- Phase 1: Stop outbreaks. This phase is intended to interrupt known chains of transmission by targeting contacts of incident cases with onset in the previous 2-4 weeks and healthcare workers/frontline workers (HCWs/FLWs) in areas with active cases. This is a targeted approach that focuses on individuals most likely to transmit disease and uses fewer resources to efficiently reduce transmission by breaking chains of infection.
- Phase 2: Expand protection. This phase seeks to limit further spread in affected communities if additional doses are available. It targets individuals at high risk of severe disease – based on local epidemiology – in affected areas. This approach aims to provide broader community protection but does require additional doses, resources, and logistics.
- Phase 3: Protect for the future. The final phase focuses on increasing population immunity in areas at risk of outbreak expansion of future outbreaks. It targets all populations recommended by the Strategic Advisory Group of Experts on Immunisation (SAGE) as more doses become available. The goal is to achieve herd immunity to provide community-wide protection. Although it is resource-intensive, it is effective in reducing overall transmission.
The phased approach ensure that vaccination efforts are “prioritised and tailored to stopping the outbreak, guided by improved surveillance data, with the flexibility to scale up as vaccine availability increases”. The SPRP focuses on Phase 1 of the strategy.
The vaccine landscape
The SPRP presents a brief review of potential vaccine candidates under consideration:
- MVA-BN – A non-replicating vaccine, indicated for smallpox, and authorised in several countries for mpox prevention.
- LC16m8 – A minimally replicating vaccine, authorised in Japan for smallpox and mpox prevention.
- ACAM2000 – A replicating vaccine indicated for smallpox, with emergency use authorisation for mpox in the US.
Vaccines in preclinical studies include BNT166a and BNT166c; these are next-generation mRNA vaccines designed to provide “broad protection” against MPXV and related orthopoxviruses. These are showing “promising” preclinical results and research is focused on evaluating their efficacy and safety in “diverse groups”.
“The current outbreak presents an opportunity to evaluate new vaccines, which, if proven effective and safe, could expand vaccination efforts and help control the outbreak.”
Scale up of global production and distribution is “vital” to meet demand, particularly in low- and middle-income countries. Furthermore, accelerating regulatory evaluations for new and existing vaccines is “essential” to ensure availability.
For insights into a novel mpox vaccine from Tonix Pharma, join us at the Congress in Barcelona this October, or get your tickets to the Congress in Washington next April for more on mpox preparedness and response; don’t forget to subscribe to our weekly newsletters here.
by Charlotte Kilpatrick | Aug 20, 2024 | Global Health |
In Vaccine X researchers from PATH address a “dearth” of evidence on determinants of vaccine delivery costs for human papillomavirus (HPV) vaccine with an analysis to identify “programmatic and operational factors” that are associated with cost variations. The analysis drew on data from Ethiopia, Guyana, Rwanda, Senegal, Sri Lanka, and Uganda to provide evidence for programme stakeholders on which programme context variables affect costs. The authors hope that this can “inform programme adjustment to improve cost efficiency”. This is particularly important amid efforts to “revitalise and rebuild” HPV vaccine coverage after the COVID-19 pandemic.
Varying costs
The costs of delivering human papillomavirus (HPV) vaccines vary “within and across low- and middle-income countries” (LMICs). However, there is “limited evidence” on the factors behind these cost differences, and research from routine infant vaccine delivery can “fail to capture the drivers” of HPV vaccine delivery required for “effective and budget-conscious” planning. Indeed, many routine HPV vaccination services in LMICs are offered in school-based or outreach settings, so they differ from infant vaccines that are “predominantly provided in facility-based settings”.
Thus, factors like the number of schools served and distance travelled by health workers could affect programme costs. Other factors are “unique” to HPV vaccination programmes, such as per diem payment to vaccination teams and variation in timing of vaccination delivery.
Global HPV vaccine coverage dropped by 15% because of the COVID-19 pandemic; this was the most significant coverage decline during the pandemic. While HPV vaccination programmes attempt to “revitalise and expand coverage”, the authors suggest the need for evidence on cost drivers to improve cost efficiency “without compromising programme quality”. Their study evaluated the operational context and costs of HPV vaccine delivery in six LMICs.
The study
The researchers conducted secondary analysis of data from a primary mixed-methods study that evaluated the operational context and economic and financial costs of HPV vaccine delivery in Ethiopia, Guyana, Rwanda, Senegal, Sri Lanka, and Uganda. The programme activities included programme planning and management, social mobilisation, training, vaccine collection and storage, service delivery, crisis management, and waste disposal.
Economic costs were calculated for each activity conducted by health facilities, including financial and opportunity costs:
- Financial costs – expenditures with direct financial outlays like per diems paid, venue rentals, and meals for meetings, travel expenditures, and distribution of materials for social mobilisation.
- Opportunity costs – costs of using existing resources and including time costs for health workers/vaccinators, support staff, and non-health workers, annualised cost for vehicles and equipment.
What does the study find?
Like studies of routine infant vaccinations, the authors found in this research that total doses delivered were “positively and significantly associated with the economic costs”. This reflects “increasing resource use with an increase in service volume”, but the variables were not statistically significant in conditional regression.
The study also identified cost determinants that had not previously been explored. For example, the higher the number of HPV vaccination sessions conducted by the health facility, the higher the economic costs for that facility. The larger the number of activities or meetings held by the facility, the higher the economic costs.
“HPV vaccination programmes seeking to reduce costs may explore options to reduce the intensity of some programme activities, where possible, to increase cost efficiency.”
For some countries, moving from a two-dose schedule to a single-dose schedule may reduce the number of vaccination sessions held per health facility during the year and/or reduce the number of vaccination activities conducted. This would be “especially true” for countries like Rwanda, where the first dose is “almost exclusively” administered in the first half of the year and the second dose in the latter half. However, without a schedule change facilities can still “examine the activities being done and reduce intensity where possible”.
Health worker utilisation was “positively and significantly associated with costs” in both unconditional and conditional regressions. As human resource time is the “largest share” of economic costs, a reduction in the intensity and frequency of activities might reduce the total human resource time. For HPV vaccination programmes, human resource utilisation also includes non-health workers, like school staff or community stakeholders. Their engagement increases economic costs.
“In some countries, there may be a need to identify strategies to reduce the labour intensity of HPV vaccination programme activities to reduce programme costs.”
The primary analysis revealed that in countries where per diems were paid, the per diems comprised the largest share of financial costs at health facility level. Although per diems can “augment health worker salaries and incentivise travelling”, not paying per diems might reduce costs and increase cost efficiency.
The paper concludes that the findings offer evidence to stakeholders on the variables that affect costs.
“This evidence can be used to adjust programme characteristics to improve cost efficiency, especially in a context of programme revitalisation and coverage improvement after the pandemic.”
For the latest insights into vaccination programme development and strategy, get your tickets to join us at the Congress in Barcelona this October, and don’t forget to subscribe to our weekly newsletters here.
by Charlotte Kilpatrick | Aug 19, 2024 | Global Health |
The Aga Khan Foundation (AKF) announced in August 2024 that it is launching a $7.2 million nutrition and immunisation programme in Pakistan with support from federal and provincial governments, Gavi, and The Power of Nutrition (TPoN). The programme seeks to support more than one million mothers and children in the most marginalised areas of three provinces. Pakistan faces “significant” child health challenges, with the third-highest global burden of child mortality; it ranks third in the world for the “most under-vaccinated children” with nearly 1.2 million children not immunised. In hard-to-reach populations, where there are higher concentrations of “undernourished, stunted, and wasted children”, there are high numbers of “zero-dose” children.
Malnutrition and under-immunisation
AKF infers from the correlation of malnourished and under-immunised children that children who are at high risk of malnutrition are also the ones missing out on essential immunisation services. Therefore, an integrated immunisation and nutrition approach could provide “combined reinforcement benefits”. Although malnutrition and infectious diseases are “key contributors” to child morbidity and mortality, immunisation and nutrition programmes “often operate in isolation”.
$7.2 million programme
The programme will support districts with a “particularly high” need: Diamir, Astore, Gilgit, Sibi, Bolan, Usta Muhammad, Thatta, and Sajawal. It is jointly funded by the partners and centrally managed by The Power of Nutrition. Starting later this year, it will run until 2027.
The integrated approach involves strengthening health systems to address existing gaps, social behaviour change communication to ensure demand for immunisation, and support for district and national governments towards evidence-based decision making and learning. It seeks to provide “vital evidence” on the importance of integration and real-life examples to demonstrate cost-effective methods of joint delivery.
Akhtar Iqbal, Chief Executive Officer of Aga Khan Foundation Pakistan, looks forward to the “unique opportunity” to contribute to Sustainable Development Goals by “extending an integrated package of immunisation, health, and nutrition interventions for children living in some of the most marginalised districts in Pakistan”.
“Through a close partnership with the Federal and Provincial Expanded Programme on Immunisation Directorates, and technical support of the Aga Khan Health Services and Aga Khan University, the programme will generate data, evidence, and learning to fill gaps and discover what works in this under-resourced area.”
Dr Tokunbo Oshin, Director, High Impact Countries, Gavi, is “pleased to be able to support this innovative programme”, which addresses parental preferences to be “reached with package of interventions”.
“Through health systems strengthening efforts, this will be a good opportunity to provide essential services in remote areas of Pakistan and learn how to better scale up integrated service delivery, including immunisation and nutrition.”
Dr Alok Ranjan, Director of Programmes and Investments, The Power of Nutrition, is “delighted to bring together” the partners for a “vital project”.
“For too long nutrition and immunisation stakeholders have been working separately, despite the interventions reaching similar populations and being mutually beneficial. This programme promises not only real impact in Pakistan, [but] it can help pave the way for more integrated programming worldwide.”
To hear from immunisation experts at the Congress in Barcelona this October get your tickets here and don’t forget to subscribe to our weekly newsletters for vaccine updates.
by Charlotte Kilpatrick | Aug 13, 2024 | Global Health |
Research in The Lancet Regional Health Americas in August 2024 evaluates the effect of various COVID-19 vaccine rollout phases on “trends and prevalence” of anxiety and depression in US adults. The authors conducted a US population-based multi-intervention interrupted time series analysis through Deep Learning and autoregressive integrated moving average (ARIMA) approaches. They find “disparate effects” of the phased vaccine rollout and highlight the need for “careful planning” in future vaccine strategies.
Pandemic effects on mental health
The authors note that the COVID-19 pandemic “intensified pre-existing challenges” and “exacerbated health disparities” for many in the US. Research illustrates the pandemic’s “multifaceted impacts” on mental, with many people facing “compounded stressors and trauma” due to high COVID-19-related mortality and morbidity. A “marked increase in the prevalence of anxiety (25.5%) and depression (24.3%)” was observed.
Although the COVID-19 vaccine rollout, which began on 11th December 2020 in the US, was expected to provide a “sense of optimism for a return to normalcy”, the effect of the rollout and subsequent phases on mental health outcomes “remains unclear”. However, there is a “burgeoning body of research” into the psychological implications of COVID-19 vaccination. This research tends to consider adverse mental health symptoms post-vaccination; links are also drawn between mental health issues and vaccine hesitancy and trust in government and public health officials. Despite this, there is a “significant evidence gap with major public health implications” around the consequences of a phased COVID-19 vaccine rollout on mental health among US adults.
Public health guidelines on vaccine distribution may have influenced mental health outcomes in “several ways”. For example, the availability of the vaccine “might offer hope and relief” and enhance a “sense of control and optimism”. On the other hand, the phased distribution could “instigate stress due to concerns about its accessibility” and the unequal distribution “may exacerbate social and health inequalities”, thus “amplifying feelings of uncertainty, frustration, and resentment”.
“Because of the potential mixed psychological effect of phased COVID-19 vaccine rollout, we hypothesised that COVID-19 vaccine rollout phases would be associated with a change in the prevalence of anxiety and depression among US adults while controlling for the potential psychological effects associated with major pandemic-related events.”
The study
The study aimed to evaluate the association of specific phases of COVID-19 vaccine rollout with the prevalence of anxiety and depression among US adults at a population level. Secondary, de-identified data from the CDC’s Behavioural Risk Factor Surveillance System (BRFSS) was analysed. The BRFSS conducts surveys to collect data on risk behaviours, chronic health conditions, healthcare accessibility, and the use of preventive services among “noninstitutionalised US adults”.
The results of the main ARIMA model indicated a “modest uptrend” in the prevalence of anxiety and depression in US adults between 2019 and February 2023. Within this, the authors find it “noteworthy” that the estimated prevalence of anxiety and depression dropped after the prioritisation for educational/childcare workers on 2nd March 2021. This implies that this prioritisation “appeared to alleviate mental health burden” among US adults. Vaccine authorisation for children aged between 6 months and 5 years might have contributed to decreased anxiety/depressive symptoms in many people, including caregivers of this group.
The estimated anxiety and depression prevalence decreased after a booster rollout for all US adults on 21st November 2021, but Phase 1 and 2 of COVID-19 vaccine rollout were “not associated with a significant reduction”. The authors wonder if heterogeneity in vaccine distribution led to access disparities, which might have a “diluted effect on the overall mental health” or the “politicisation and persistent misinformation” around vaccine safety and efficacy had a “mixed influence” on mental health.
Another notable discovery is an apparent association between the Phase 1 vaccine rollout and “significant increases in the prevalence of anxiety and depression among Black/African Americans and other non-Hispanic people of colour”. Research suggests that “historical and ongoing systemic racism and discrimination across the healthcare systems and society” could contribute to mistrust and distrust.
“Given the heightened risk of COVID-19 complications without vaccination coupled with the stress of systemic racism and healthcare disparities, it is possible that more Black/African Americans and other non-Hispanic people of colour (e.g. Asian/Indigenous) experienced mental health problems following Phase 1 vaccine rollout.”
It also appears that “lower-income individuals experienced anxiety and depression” after Phase 1, which the authors suggest could be attributed to a “higher proportion of lower-income individuals from Black/Africa communities”, highlighting “socioeconomic inequalities”. However, they state that research is needed to determine a causal link.
Implications
“Overall, these findings provide crucial implications for phased disease prevention and intervention strategies in future vaccine administration.”
The authors highlight the need to ensure “sufficient vaccine supply and accessibility” to promote public mental health by “enhancing perceptions of public safety and reducing pandemic-related stress and fears”. They call on public health officials and the pharmaceutical industry to consider the role of “logistical efficiency and vaccine availability in supporting public mental health”.
Lead author and director of the University of Alabama at Birmingham Community Counselling Clinic, Dr Yusen Zhai, comments that the “empirical evidence” from the study underlines the “need for careful planning in future strategies”. This is particularly important for groups who experience a “combination of historical mistrust, ongoing discrimination, and the added pressures of economic hardship”.
“Concerns about the vaccine’s safety and effectiveness were more pronounced in these communities, partly due to past experiences of being mistreated or misled by health care providers and authorities. This scepticism was exacerbated by the fast-paced development and distribution of the vaccine, making it harder for people to feel confident about getting vaccinated.”
For more on lessons from the COVID-19 vaccine rollouts that can be addressed for future vaccine strategies, why not join us at the Congress in Barcelona this October? Don’t forget to subscribe to our weekly newsletters for more vaccine news here.
by Charlotte Kilpatrick | Aug 1, 2024 | Infection |
The City of Cape Town, South Africa, shared the results of an expert scientific workshop convened in partnership with the Department of Forestry, Fisheries, and the Environment (DFFE), the Two Oceans Aquarium Foundation, and Sea Search. The workshop focused on a perceptible increase in “unusual and unprovoked” Cape Fur Seal bites and aggression in the Western Cape, which is “directly linked” to the confirmed presence of the rabies virus in some of these seals.
Aggression in seals linked to rabies
Although “some levels” of aggression in seals is regarded as “normal” and result from factors such as “territorial behaviour, maternal protectiveness, pain or distress” and poor health, the statement notes “excessive aggression associated with unusual behaviour”. This change in behaviour is being attributed to the presence of rabies in the seal population. Rabies is reportedly “well-established in the Cape Fur Seal population” and “unlikely to be eradicable”. Therefore, it is now considered endemic, requiring “ongoing and long-term management”.
It is suggested that rabies was transmitted to these seals from another wildlife population, rather than local domestic dogs. While other animals can experience a “slow burn” of “flares and declines”, there are concerns that seals are different to these populations as they are “highly gregarious animals living in very large colonies”.
“Given that this is the first documented rabies infection in a marine mammal population there are many unknowns.”
The response
Coastal authorities are working with the State Vet, veterinary experts, researchers, marine mammal experts, and animal welfare organisations to implement “ongoing proactive measures” to manage the outbreak. Measures include:
- Reporting
- Ongoing surveillance
- Possible euthanasia
- Research partnerships
- Vaccination
- Testing
Vaccination concerns
There are “over 2 million” Cape Fur Seals across Southern Angola and the Eastern Cape, so vaccination of the wild population is “not considered viable or possible”. However, a vaccination strategy could be useful. A vaccination trial focusing on animals that come into regular contact with humans was “strongly recommended”; the Two Oceans Aquarium is to develop a standard procedure for vaccinating seals. Visiting elephant seals and Sub-Antarctic fur seals will also be vaccinated as a precautionary measure. Vaccinated seals will be tagged where possible.
Public health
The public health advisory remains that rabies vaccines are “not recommended for the general public at this time”. However, anyone who is bitten or scratched by a seal resulting in an open wound must seek medical attention immediately and receive post-exposure prophylaxis. Domestic dogs should have up to date vaccines and owners must ensure that their dogs avoid contact with seals.
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