| [enzootic viral abortion on a stud farm in east switzerland]. | an outbreak of abortion due to the equine herpesvirus-1 (ehv-1) in the eastern part of switzerland is reviewed. seven of eleven pregnant mares aborted within twenty-three days in january 1989. four weeks later another foal died a few minutes after parturition. three mares delivered live foals in february, march and april without any complications. the examination of the eight dead foals revealed an ehv-1 infection. the clinical signs and the pathology are discussed. severe complications during t ... | 1990 | 2171142 |