Provides broad spectrum active immunity against eastern, western, and Venezuelan equine encephalomyelitis and tetanus. Contains killed viruses, tetanus toxoid and a potent, surface active adjuvant. Safe to use on all healthy horses. Exceptionally non-irritating at injection site. Asceptically inject 2 mL IM. For primary vaccination administer a second 2 mL dose in 4 to 6 weeks using a different injection site. Revaccinate annually and prior to anticipated exposure, using a single 2 mL dose. Use a separate, sterile 1-1/2 inch needle for each injection.