Stool Survey for Escherichia coli O157:H7

The authors are involved in surveillance study of hemorrhagic colitis associated with E. coli O157:H7. They processed 1,328 stool specimens using sorbitol-MacConkey (SMAC) agar as a differential primary-isolation medium. E. coli O157:H7 was isolated from 22 (19.6%) of 112 stools from 55 patients wit...

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Bibliographic Details
Published in:The Journal of infectious diseases 1986-06, Vol.153 (6), p.1176-1176
Main Authors: Ratnam, Samuel, March, Sandra B.
Format: Article
Language:English
Subjects:
Colitis, Ulcerative - microbiology
Culture Media
Escherichia coli
Escherichia coli - classification
Escherichia coli Infections - diagnosis
Feces - microbiology
Humans
Serotyping
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Summary:The authors are involved in surveillance study of hemorrhagic colitis associated with E. coli O157:H7. They processed 1,328 stool specimens using sorbitol-MacConkey (SMAC) agar as a differential primary-isolation medium. E. coli O157:H7 was isolated from 22 (19.6%) of 112 stools from 55 patients with bloody diarrhea; it was not found in any of the 1,216 stools from patients who did not have bloody diarrhea. E. coli O157:H7 is generally not associated with nonbloody diarrheal illness. The authors advise that all bloody stools be selectively cultured for this agent. There is ready presumptive recognition of E. coli O157:H7 in stool specimens cultured in SMAC medium overnight.
ISSN:0022-1899
1537-6613
DOI:10.1093/infdis/153.6.1176