  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, EIV, EHV-1, EHV-4, tetanus, and West Nile Virus. Duration of immunity has been shown at 6 months for EIV. For more information regarding safety and efficacy data, go to productdata.aphis.usda.gov. This product has been shown to decrease virus shedding of EIV, EHV-1 and EHV-4, as well as to decrease encephalitis and viremia caused by West Nile Virus. Foals nursing immune-dams should be vaccinated when maternal antibody levels will allow active immunization. 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 annual booster vaccination has not been established for this product. 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. Consult your veterinarian. |
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