For the vaccination of healthy horses against eastern, western and Venezuelan encephalomyelitis, equine influenza virus and tetanus, and as an aid in the prevention of respiratory disease caused by equine herpesvirus and equine influenza virus. Dose: aseptically inject 1 ml IM and repeat in three to four weeks. A 1 ml dose should be administered annually and at any time epidemic conditions exist or are reported and exposure is imminent.