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This product has been shown to be effective for the vaccination of healthy horses 6 months of age or older against EHV-1 and EHV-4. 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 virus shredding of EHV‐1 and EHV‐4.
For primary vaccination aseptically administer 1 mL intramuscularly, repeat with a single dose in 4 - 6 weeks. Historically, annual revaccination with this product has been recommended. The need for this booster has not been established. For more information on revaccination frequency, consult your veterinarian.
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