immunizes recipient immunizes against pathogen Eastern equine encephalitis virus Venezuelan equine encephalitis virus Western equine encephalitis virus West Nile virus unidentified influenza virus Equus caballus West Nile virus vaccine horse vaccine Eastern Equine Encephalitis Virus vaccine VEE Virus vaccine horse Encephalomyelitis-Influenza-West Nile Virus vaccine Asiyah Yu Lin vaccine A horse vaccine that protects against EEE, VEE, WEE, influenza virius infection, and West Nile virus infection. Western equine encephalomyelitis virus vaccine