Abstract
Five stillborn fetuses and fetal placentas from a sow with abortion occurring at 2 weeks before the expected delivery date were examined. The fetal placentas were cloudy and the fetuses had subcutaneous edema, reddish thoracic and peritoneal fluid and epicardial and renal hemorrhages. Microscopy revealed villous necrosis in the placentas, with numerous gram-positive cocci. Focal necrosis of liver, cerebral meningitis and bacterial embolism were recognized in the fetuses. Streptococcus group C was purely isolated from 3 of 5 fetuses. No virus was isolated. Antibodies against Japanese encephalitis virus and porcine parvovirus were not detected.
