Relationship among enterotoxigenic phenotypes, serotypes, and sources of strains in enterotoxigenic Escherichia coli.

摘要: The relationship among O groups, O:H serotypes and enterotoxigenic phenotypes was examined in 76 Escherichia coli strains isolated Brazil from different sources. Of the 17 heat-labile -stable enterotoxin (LT/ST)-producing whose antigens were identified, 15 belonged to O6:H16 (7 strains), O63:H- (5 O139:H28 (3 strains). All 11 ST group OO128PAC, which represented by four serotypes. 23 LT with antigen identified distributed of 14 groups. Colonization factor CFA/I not found any strains, but it six LT/ST three strains. On whole, each E. serotype had a particular fermentation pattern. as well all patients diarrhea, whereas normal children, food, river water.