This Encevac-T + WNV with Havlogen equine vaccine is for the vaccination of healthy horses 6 months of age or older against Equine Encephalomyelitis Viruses (Eastern and Western), West Nile Virus – Flavivirus Chimera and Tetanus Toxoic. Give 1 ml IM; repeat in 3 to 4 weeks. Revaccinate annually with a single 1 ml dose. Early revaccination with Encevac-T +WNV may be advisable when horses are faced wiht an outbreak or with other conditions which might make heavy exposure likely. Killed vaccine.