Escherichia fergusonii Associated with Pneumonia in a Beef Cow. (2nd December 2013)

• Record Type: Journal Article
• Authors: Rimoldi, Guillermo M.; Moeller, Robert B.
• Other Names: Paradies Paola Academic Editor.
• Is Part Of: Journal of veterinary medicine. Volume 2013(2013)
• Publication Date: 2013-12-02
• Subjects: Veterinary medicine -- Periodicals; 636.08905
• DOI: 10.1155/2013/829532
• Languages: English
• ISSNs: 2356-7708

Abstract

Abstract : An adult Angus cow developed hyperthermia, prostration, and respiratory distress, dying 36 hours after the onset of clinical signs. The main finding during postmortem examination was a severe focally extensive pneumonia. Icterus and a chronic mastitis were also noticed. Histologic examination of the lungs detected fibrinonecrotic pneumonia, with large number of oat cells and intralesional Gram-negative bacterial colonies. Samples from lung lesions were collected, and a pure growth of Escherichia fergusonii was obtained. E. fergusonii is a member of Enterobacteriaceae, related to Escherichia coli and Salmonella sp. In veterinary medicine, E. fergusonii has been reported in calves and sheep with clinical cases suggestive of salmonellosis; in a horse and a goat with enteritis and septicemia; and in ostriches with fibrinonecrotic typhlitis. To our knowledge, this report represents the first description of E. fergusonii associated with an acute pneumonia in cattle.