Different ailments and diseases in horses are Equine Influenza (Flu), Equine Herpesvirus (Rhinopneumonitis), Equine Encephalomyelitis (Sleeping Sickness), Equine Infectious Anemia Virus, West Nile Virus, Streptococcus Equi (Strangles), Tetanus (Lockjaw), Equine Rabies, Potomac Horse Fever, and Equine Protozoal Myeloencephalitis.