Possible involvement of leptospires in abortion, stillbirths and neonatal deaths in sheep.

Using culture, immunofluorescence and fetal serology, leptospiral infection was demonstrated in aborted, stillborn and weak lambs from nine out of 42 flocks investigated during the 1980 and 1981 lambing seasons. Three serogroups of leptospira, namely the Hebdomadis, Australis and Pomona serogroups, were implicated.