title: Bacillus piliformis infection (Tyzzer's disease) in a calf.
abstract: A 1-week-old Jersey bull calf with a history of diarrhea, weakness, and lethargy was submitted for necropsy. Principal macroscopic findings were enteritis and multifocal necrotizing hepatitis. Histologically and ultrastructurally, organisms with characteristics of Bacillus piliformis were associated with the foci of necrosis in the liver.
authors: Department of Veterinary Microbiology, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907.
authors: D M
authors: DM
authors: Webb
authors: D D
authors: DD
authors: Harrington
authors: P N
authors: PN
authors: Boehm
mesh_terms: D000818:Animals; D001407:Bacillus / Q000648:ultrastructure; D001424:Bacterial Infections / Q000209:etiology / Q000473:pathology / Q000662:veterinary*; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology / Q000473:pathology*; D003106:Colon / Q000473:pathology; D003967:Diarrhea / Q000209:etiology / Q000473:pathology / Q000662:veterinary*; D007421:Intestine, Small / Q000473:pathology; D008099:Liver / Q000473:pathology; D008297:Male; D008854:Microscopy, Electron