West-Nile Innovator + EWT helps protect horses against core diseases West Nile virus, equine encephalomyelitis due to Eastern and Western viruses, and tetanus.Eastern Equine Encephalomyelitis (EEE) is 90% fatal, Western Equine Encephalomyelitis (WEE) is 50% fatal, Tetanus is 75% fatal, and West Nile virus is fatal in 33% of horses that exhibit clinical signs of the disease. Vaccination is the most effective way to help protect horses against West Nile virus and other mosquito-borne diseases, such as Eastern equine encephalomyelitis (EEE) virus and Western equine encephalomyelitis (WEE) virus.We directly source prescription medications from manufacturers and wholesale distributors registered with the FDA and licensed by applicable state boards. Guaranteed genuine, and where applicable, backed by the manufacturer.