Diarrheal Diseases in Children and Adults Associated with Escherichia coli Strains not Belonging to Enteropathogenic Serotypes

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Abstract
Between 1958-1963, 6 incidents of enteritis and enterocolitis in children and adults were encountered, all but one with epidemic aspects, in which the only bacterial flora present in the stools and/or incriminable was represented by Escherichia coli not belonging to the enteropathogenic serotypes. The final serological identification (O and H) of these strains was performed at the International Escherichia Centre, Copenhagen. The origin of the different serotypes was as follows: E. coli neg. Ol-146::H28, from an outbreak with food poisoning character involving 120 adults from 300 who have been eating together; E. coli O75::H5, isolated in 2 successive instances at 4 day''s interval from an adult cook with acute febrile enteritis; E. coli O4 18::H28, from 12 adults with afebrile enteritis in a group of45 who consumed the same food, epidemiologically incriminated. The same serotype as above (3), 2 years later, in a small epidemic of afebrile diarrhea involving 4 adults in a. hospital; E. coli O73::H18 from 13 of a group of 22 newborns with acute epidemic dyspepsia in an obstetric clinic and E. coli O71::H- from 22 patients and 10 of their contracts (adults and children) from an epidemic of afebrile enterocolitis of apparent water origin.

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