ABSTRACT
A vaccination program should be incorporated with sound management practices including proper nutrition, sanitation, frequent deworming, segregation of new arrivals, and limitation of horse movement. The animal's health status will directly affect the animal's immune response. Strangles, or distemper, is an infectious condition of horses caused by the bacteria Streptococcus equi. Horses showing clinical signs of disease should not be vaccinated with the M-protein extract vaccine. Equine influenza, or "flu," is a viral disease of horses that attacks the entire respiratory system. Rhinopneumonitis, more correctly called equine herpesvirus-1, is responsible for four clinical manifestations of disease in the horse: upper respiratory disease of young horses, abortion in mares, neonatal foal disease, and neurological disease. Tetanus is a highly fatal, infectious disease of horses, caused by Clostridum tetani. Equine encephalomyelitis, commonly called sleeping sickness, is a viral disease of horses that causes central nervous system disturbance and generally a high death rate.
