Attaching and effacing Escherichia coli infection as a cause of diarrhea in young calves
Janke, B.H.; Francis, D.H.; Collins, J.E.; Libal, M.C.; Zeman, D.H.; Johnson, D.D.; Neiger, R.D.
Journal of the American Veterinary Medical Association 196(6): 897-901
1990
ISSN/ISBN: 0003-1488 PMID: 2179181 Document Number: 361097
A form of enteric Escherichia coli infection was identified in 60 calves from 59 farming operations. The E coli responsible for these infections principally colonized the colon, inducing a distinctive lesion described as attaching and effacing. Hemorrhagic enterocolitis or blood in the feces was observed on 40% of the farms. Of affected calves, 86.6% were dairy calves (average age, 11.8 days). Forty-four calves were infected concurrently with other enteropathogens (cryptosporidia, rotavirus, coronavirus, enterotoxigenic E coli, bovine viral diarrhea virus, coccidia). Verotoxin-producing E coli was recovered from 31 calves; 8 were serotype 0111:NM isolates, 3 were serotype 05:NM, and 1 was serotype O26:NM.