1997 Volume 50 Issue 2 Pages 89-91
From May to December 1994 at 9 of hoggeries in Z city, Shizuoka Prefecture, approximately 2, 800 piglets showed diarrhea, edema of eyelids, nervous symptoms, 7-14 days after weaning and 1, 400 died. Of 11 killed and 3 dead piglets, 3 cases showed cerebrospinal angiopathy at autopsy. EnterotoximicEscherichiacoliO 141: H4, produced verotoxin, was isolated (more than 107CFU/g) from duodenum contents of 8 cases. By the environmental investigation of 16 hoggeries in the city, E. coliO 141 was detected from floors of 8 farmhouses with the outbreaks as well as 5 farmhouses without outbreaks.
