Epidemiological Observations on bovine viral diarrhea‐mucosal disease virus‐induced congenital cerebellar hypoplasia and ocular defects in calves

Abstract

Congenital cerebellar hypoplasia occurred in five calves in two New York State dairy herds in which bovine viral diarrhea‐mucosal disease occurred while the dams were pregnant. Clinical and serological evidence linked the virus infection with the anomalies. The dams of the calves were estimated to have been infected between days 102 and 183 of pregnancy.