European Regulators Approve New Nobivac RNA Vaccines
MSD Animal Health launches a new range of six RNA-based vaccines for cats in the European Union.
Updated on Oct. 27, 2026 in Pet Health
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European regulators have approved the Nobivac NXT vaccine range, which consists of six individual products designed to protect cats against five major pathogens. This new range was officially launched at the WSAVA Congress in Warsaw.
Why it matters
The introduction of this RNA technology aims to simplify veterinary care by providing long-lasting immunity through a low-volume dosage. The range offers three years of protection against several common feline diseases and one year against Chlamydia felis.
The six-vaccine range offers three years of immunity for feline herpesvirus, calicivirus, panleukopenia, and leukaemia, with one-year protection for Chlamydia felis. These vaccines follow the regional use of over three million RNA doses in North America.
The players
MSD Animal Health
This is a global research-driven company that develops, manufactures, and markets a wide range of veterinary medicines and services.
The details
The vaccines provide immunity within one week of administration while targeting feline herpesvirus type 1, feline calicivirus, feline panleukopenia virus, Chlamydia felis, and feline leukaemia virus. One of the six vaccines in the new series covers all five of these specified pathogens.
Timeline
Over 5,000 cat owners were surveyed between 2024 and 2026.
More than three million doses were sold in North America in the two years prior to October 2026.
The Nobivac NXT range launched at the WSAVA Congress in October 2026.
Culture Shift
This release follows the global veterinary industry's shift toward the WSAVA Congress as the primary stage for launching high-tech immunological advancements. It highlights a move to align clinical product availability with modern research expectations shared by owners and practitioners.
Cat owners should consult with their local veterinarians to discuss whether these new low-volume RNA vaccines are suitable for their pets. This rollout may change the vaccination schedule or frequency recommended during annual wellness exams.
The takeaway
Advancements in RNA technology continue to streamline veterinary care protocols by reducing the dosage volume needed for effective, multi-pathogen protection. Pet owners are encouraged to rely on their veterinarian as the primary source for accurate immunization education.
Further reading
For more information on the evolving standards for feline immunizations, visit the Pet Health section.
Source note: This article includes information reported by Vettimes.
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Do you believe all house cats require regular infectious disease vaccinations, regardless of their lifestyle?
