| Abstract: | The famous Lippizan stud at Piber, Austria, previously left unvaccinated, was severely hit by equine rhinopneumonitis (equine herpes virus-1, EHV-1) in 1983. Thereafter a vaccination program was started for the Lipizzans at the stud using three different vaccines and various vaccination schedules.All vaccinated horses were systematically checked for their antibody response against the virus. The inactivated, monovalent, oil adjuvanted vaccine seemed to be the most effective, although none was entirely satisfactory. Equine rhinopneumonitis occurs world-wide and leads to seroconversion in 86 percent of horses that are in frequent contact with other horse populations.10 |
