Mosquito-borne diseases remain a deadly threat to horses throughout the continental United States. They attack the brain, and sometimes the spinal cord, causing neurological damage and often death.

Only The Mosquito Shot (West Nile-Innovator + EWT) protects against West Nile virus and Eastern and Western equine encephalomyelitis, in one convenient shot.1

Proven 96.7 percent effective against natural West Nile infection2 and 94 percent effective against laboratory West Nile challenge.3
Adjuvanted with MetaStim® for enhanced immune response.
Veterinarians’ #1 choice for West Nile protection.4

  The Mosquito Shot Consumer Brochure

  AAEP Vaccination Guidelines

  AAEP Vaccination Guidelines for Adult Horses

West Nile-Innovator Product Label

West Nile-Innovator + EW Product Label

West Nile-Innovator + EWT Product Label

West Nile-Innovator + VEWT Product Label


1. Only one annual booster required following initial vaccination series. Read and follow label directions.
2. Based on attributable fraction calculation. Epp, Tasha Y, et al. Efficacy of Vaccination for West Nile Virus in Saskatchewan Horses. AAEP Proceedings, Vol. 51, 2005.
3. Based on preventable fraction calculation. Data on file, Fort Dodge Animal Health.
4. Based on market share.