This product has been shown to be effective for the vaccination of healthy horses 6 months of age or older against West Nile Virus.

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.

Sold by the individual pre-loaded 1ml dose. 10 individual doses come in a box.