MSD Animal Health announced in September 2024 that it is expanding the newly USDA-approved NOBIVAC NXT vaccine platform to include a best-in-class solution to protect cats against a common feline infectious disease, feline leukaemia virus (FeLV). Describing this technology as a “breakthrough scientific achievement”, MSD Animal Health indicated that the vaccine is expected to be available at veterinary clinics and hospitals in the autumn.
NOBIVAC NXT
The NOBIVAC platform is behind a portfolio of products with an “extensive range of vaccines” to protect companion animals against various diseases. NOBIVAC NXT FeLV is the first and only feline leukaemia virus vaccine built using the RNA-particle technology platform. It is designed to deliver “optimised protection”. It is a nonadjuvanted, low volume 0.5 mL dose vaccine that “harnesses the natural ability of the immune system” to generate a robust response.
NOBIVAC NXT FeLV is labelled effective against persistent viraemia and is indicated for the vaccination of cats aged 8 weeks or older. The American Association of Feline Practitioners (AAFP) recommends administration in two doses, 3 to 4 weeks apart. It follows the AAFP’s recommendations for extended duration protection with a proven 2-year duration of immunity (DOI).
Feline leukaemia virus
Feline leukaemia virus can be spread in a “multitude of ways”, including mutual grooming, fighting behaviour, or shared food. It poses “serious” health risks, but cats often show no symptoms when they are first infected. However, as it persists, the virus can lead to cancer, severe blood disorders, or other infections associated with a compromised immune system. Routine vaccination can help protect from potential illness.
Meg Conlon, DVM, executive director, veterinary professional services, MSD Animal Health, suggested that “nearly 4% of cats” in North America are affected by the disease. This is a “notable percentage when there have been guidelines for prevention in place for decades”.
“That’s why education and awareness of the importance of vaccinating against this disease is so important.”
Ian Tarpey, vice president, research and development, MSD Animal Health, is proud to extend the RNA-particle technology with a vaccine that “protects against one of the most persistent threats to our feline patients”.
“MSD Animal Health and our NOBIVAC brand have a rich history in vaccine innovation, and we’re continuing to prove our dedication to ensuring there are safe and effective treatment options for veterinary professionals with the latest development of NOBIVAC NXT FeLV.”
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