Establishing an honest horse vaccination schedule is vital to protective your horse against infectious diseases. After you begin a horse vaccination program, two or more doses protective against every disease are typically required to initiate an adequate immune response. Over time, the protecting antibodies provided by the initial horse immunizations can decline. Regular booster vaccinations against every disease can bring immunity to adequate levels and minimize the potential for illness. Horse Vaccines, Equine Vaccines, Equine Vaccines Guidelines, Horse Sickness Vaccines, Horse Vaccination Guidelines, Horse Vaccines for Animal, Veterinary Horse Vaccines.