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This product has been shown effective for the vaccination of healthy horses 6 months of age or older against Eastern and Western encephalomyelitis (EEE and WEE) viruses, equine influenza virus (EIV) and tetanus. Duration of immunity has been shown at 6 months for EIV. Duration of immunity for Eastern and Western encephalomyelitis and tetanus 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 virus shedding of EIV.
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.
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