1998 Volume 51 Issue 2 Pages 76-79
In a farm with multiple incidences of abortion and stillbirth (above 20%), antibody to Neospora caninum was detected by indirect immunofluorescence in 14 of 17 (82.2%) cows that had recent abortion, 10 of 18 (55.6%) cows without abortion, 3 of 6 calves, and 1 of 3 aborted fetuses. Relapsing abortions occurred in 7 of 14 (50%) seropositive cows, while 23 of 100 (23%) were seropositive without abortion. Aborted fetuses from the seropositive cows had non-purulent encephalitis, myocarditis and skeltal myositis, and N. caninum tachyzoites were immunohistochemically detectable in the lesions of 7 of 10 fetuses examined.