Porcine abortion caused by Bacillus sp

Bacillus sp is known to cause abortion in cattle and sheep, but it is rarely reported to cause abortion in swine. Bacillus sp was isolated from aborted fetuses, and lesions compatible with a bacterial infection were detected in 4 of 962 aborted porcine fetuses examined. The infection apparently results in sporadic abortions and is not likely to cause economically significant reproductive failures within a herd.