Escherichia coliin gastroenteritis of children in London and Jamaica

Abstract
SUMMARY: The jejunal and stool flora of children with gastroenteritis in London and in Jamaica was examined. Although bacterial colonization of the small bowel was commonly detected, it was unusual to find the same serotype ofE. coliin both jejunum and stool, and none of the jejunal strains ofE. coliproduced either heat-labile or heat-stable enterotoxin. Some strains ofE. colicausing infant gastroenteritis are neither toxigenic nor invasive, and other mechanisms must be sought to account for their pathogenicity.