Prestige West Nile from Merck Animal Health is for the vaccination of healthy horses as an aid in reduction of disease, encephalitis, and viremia caused by West Nile Virus. Prestige WNV is adjuvanted with Havlogen. Available in a single dose w/syringe or a 10ds vial.
Dosage:
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 interfere with the development of active immunity in foals and additional boosters will be required in most young animals. For more information on revaccination frequency consult your veterinarian.
A booster dose can be administered at more frequent intervals based upon individual horse or farm disease risk assessment or any time epidemic conditions exist or are reported. Duration of immunity is under development. Foals nursing immune-dams should be vaccinated when maternal antibody levels will allow active immunization.Prestige WNV West Nile Virus Equine Vaccine contains inactivated, concentrated, adjuvanted, tissue culture origin West Nile Virus - Flavivirus Chimera.