  MERCK This product has been shown to be effective for the vaccination of healthy horses 6 months of age or older against Eastern and Western encephalomyelitis viruses and tetanus. Duration of Immunity has not been established. DOSAGE AND ADMINISTRATION: 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. For more information on re-vaccination frequency consult your veterinarian. |
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