Merck Animal Health Prestige® West Nile Vaccine

WNV is considered a core vaccination recommended by the AAEP vaccine guidelines and is indicated in the immunization program for all horses each year Advanced filtration process through the Antigen Purification System (APS™) Exceptional safety profile with the exclusive Havlogen® Adjuvant INDICATIONS This product has been shown to be effective for the vaccination of healthy horses 6 months of age or older against West Nile Virus. Duration of immunity has not been established. For more information regarding safety and efficacy data, go to productdata.aphis.usda.gov. This product has been shown to be effective against encephalitis and viremia caused by West Nile Virus.  ADMINISTRATION Dose For primary vaccination aseptically administer 1 mL intramuscularly, repeat with a single dose in 3 – 4 weeks. Historically, annual revaccination with this product has been recommended. The need for this booster has not been established. The presence of maternal antibody is known to in