title: Pathology of experimental infection by Pasteurella multocida serotype A: 1 in buffalo calves.
abstract: Pasteurella multocida serotype A:3 has been mostly implicated in pneumonic pasteurellosis in ruminants. In contrast, our previous studies have reported that both serotypes A:1 and A:3 were responsible for respiratory diseases in cattle and buffaloes. However, the pathology and pathogenesis of P. multocida serotype A:1 (Pm A:1) infection have not been studied in ruminants. In the present study, 12- to 15-week-old buffalo calves (Bubalus bubalis) infected by Pm A:1 had fibrinous and suppurative bronchopneumonia with focal areas of coagulation necrosis typical of pneumonic pasteurellosis. For the first time, this study reports the lung pathology and pathogenecity of Pm A:1 infection in calves.
authors.affiliation: Division of Veterinary Pathology, Indian Veterinary Research Institute (IVRI), Izatnagar, India.
authors.forename: P E
authors.initials: PE
authors.lastname: Praveena
authors.affiliation: Division of Veterinary Pathology, Indian Veterinary Research Institute (IVRI), Izatnagar, India.
authors.forename: S
authors.initials: S
authors.lastname: Periasamy
authors.affiliation: Division of Bacteriology, Indian Veterinary Research Institute (IVRI), Izatnagar, India.
authors.forename: A A
authors.initials: AA
authors.lastname: Kumar
authors.affiliation: Division of Veterinary Pathology, Indian Veterinary Research Institute (IVRI), Izatnagar, India nemjdresearch@yahoo.co.in.
authors.forename: N
authors.initials: N
authors.lastname: Singh
mesh_terms: D000818:Animals; D001996:Bronchopneumonia / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D002020:Buffaloes / Q000382:microbiology*; D008168:Lung / Q000382:microbiology / Q000473:pathology; D010326:Pasteurella Infections / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D016979:Pasteurella multocida / Q000145:classification / Q000276:immunology / Q000472:pathogenicity*; D012766:Pasteurellosis, Pneumonic / Q000382:microbiology / Q000473:pathology*; D065288:Serogroup
keywords: Bubalus bubalis; Pasteurella multocida serotype A:1; bronchopneumonia; calves; experimental infection; pathology; time course