Vetera® EWT + WNV provides comprehensive protection for horses with one convenient vaccine. This equine combination vaccine is for use in healthy horses and foals 4 months of age and older as an aid in the prevention of disease caused by: Equine Encephalomyelitis (Eastern and Western) Tetanus West Nile Virus Vetera® EWT + WNV aids in the reduction of severity of clinical disease caused by West Nile Virus. The duration of immunity against West Nile Virus is at least 12 months. This high quality vaccine contains killed viruses and does not require reconstitution prior to administration. It should be administered intramuscularly, with a second dose in 3-4 weeks. Annual revaccination with a single dose is recommended. Consult a veterinarian before administering to pregnant mares. Equine combination vaccine Protects against Equine Encephalomyelitis (EEE and WEE) Also protects against Tetanus and West Nile Virus For use in healthy horses and foals 4 months of age and older Killed virus vaccine, no mixing required All vaccines are shipped overnight. A $29.95 flat rate fee is charged for all orders containing vaccines. Someone should be present to sign for and receive the vaccine order when it ships to you. For more shipping info click here.