Cases more common in even well-vaccinated horses

Data from research on recent equine influenza virus (EIV)outbreaks show a noticeable change in the horses being affected by the virus. 

While naïve, young horses are still commonly affected, there has been a marked increase in EIV outbreaks among well vaccinated horses.

“This increase among well vaccinated horses is surprising and means we’re seeing a lack of vaccine effectiveness,” says Dr. Nicola Pusterla, associate professor of equine internalmedicine at the University of California, Davis, School of Veterinary Medicine. “The recommendation here is for vaccines to include the most current influenza strain.

”To help keep EIV from affecting your horse’s health, rely on a vaccine that has been updated to include the most relevant flu strains. Only Vetera® vaccines contain both the Florida Clade I and Clade II equine influenza strains as recommended by the OIE, a global panel that monitors circulating equine influenza strains, to protect against the strains most likely to infect horses today.

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