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- Title
An Outbreak of Foodborne Illness Caused by Escherichia coli O39:NM, an Agent Not Fitting into the Existing Scheme for Classifying Diarrheogenic E. coli.
- Authors
Hedberg, Craig W.; Savarino, Stephen J.; Besser, John M.; Paulus, Colleen J.; Thelen, Vicki M.; Myers, Larry J.; Cameron, Daniel N.; Barrett, Timothy J.; Kaper, James B.; Osterholm, Michael T.
- Abstract
An outbreak of gastrointestinal illness with clinical and epidemiologic features of enterotoxigenic Escherichia coli (ETEC) occurred among patrons of a restaurant during April 1991. Illnesses among several groups of patrons were characterized by diarrhea (100%) and cramps (79%–88%) lasting a median of 3–5 days. Median incubation periods ranged from 50 to 56 h. A nonmotile strain of E. coli (E. coli O39), which was negative for heat-labile (LT) and heatstable (STa, STb) ETEC toxins, was isolated only from ill patrons. This organism produced enteroaggregative E. coli heat-stable enterotoxin 1 and contained the enteropathogenic E. coli gene locus for enterocyte effacement; it did not display mannose-resistant adherence, but produced attaching and effacing lesions in the absence of mannose on cultured HEp-2 cells. E. coli that are not part of highly characterized but narrowly defined groups may be important causes of foodborne illness.
- Publication
Journal of Infectious Diseases, 1997, Vol 176, Issue 6, p1625
- ISSN
0022-1899
- Publication type
Article