Studies on enterotoxigenic Escherichia coli isolated from cattle
1986
Lee, G.L. | Choi, W.P. (Kyongbuk National Univ., Taegu (Korea R.). Dept. of Veterinary Medicine)
The purpose of this study was the examination for presence of K99 antigen (K99), enterotoxigenicity, 0-groups, colicin and antibiotic susceptibility among E. coli isolated from calves and cows. A total of 49 (18.7%) among 262 strains, isolated from 30 (26.5) out of 113 calves and cows, possesed K99, and thirty three of 49 K99+ strains produced ST. Of the strains of diarrheal calf origin which less than 15 days old, a high correlation was observed between enterotoxigenic ability and K99: 92.3% of the K99+ strains produced heat stable enterotoxin (ST)
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