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dc:abstract "Verotoxin-producing Escherichia coli O111:NM were isolated from two five week old Holstein calves with dysentery. On necropsy both calves had pseudomembranous ileitis, mucohemorrhagic colitis and proctitis. Large numbers of E. coli O111:NM were isolated from the colon and lesions typical of attaching-and-effacing E. coli were evident. The isolates from both calves had identical biochemical reactions and antimicrobial resistance patterns. Oral inoculation of a four day old colostrum deprived calf with 1 x 10(10) organisms of E. coli O111:NM produced a mild, focal colitis with typical attachment and effacement lesions. We conclude that the strain of E. coli O111:NM isolated from the clinical cases has the ability to produce colitis characterized by attachment and effacement of the colonic mucosa." ;
dc:creator "['Schoonderwoerd, M', 'Clarke, R C', 'van Dreumel, A A', 'Rawluk, S A']" ;
dc:identifier ;
dc:title "Colitis in calves: natural and experimental infection with a verotoxin-producing strain of Escherichia coli O111:NM." ;
sso:source_x "PMC" .