The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding Communities
Verocytotoxin-producing strains of Escherichia coli, most often serotype 0157:H7, have been associated with both sporadic and epidemic diarrheal disease in Canada. In order to determine the isolation rate of E coli 0157:H7 in outpatients with diarrhea, all stool specimens submitted for culture to Me...
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| Format: | Article |
| Language: | English |
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Wiley
1990-01-01
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| Series: | Canadian Journal of Infectious Diseases |
| Online Access: | http://dx.doi.org/10.1155/1990/583209 |
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| author | Andrew E Simor Christine Watt Donald E Low |
| author_facet | Andrew E Simor Christine Watt Donald E Low |
| author_sort | Andrew E Simor |
| collection | DOAJ |
| description | Verocytotoxin-producing strains of Escherichia coli, most often serotype 0157:H7, have been associated with both sporadic and epidemic diarrheal disease in Canada. In order to determine the isolation rate of E coli 0157:H7 in outpatients with diarrhea, all stool specimens submitted for culture to Med-Chem Laboratories in Metropolitan Toronto between June 1988 and September 1989 were cultured on MacConkey-Sorbitol agar in addition to standard enteric media. A total of 46 (0.3%) of 16,125 stool specimens yielded E coli 0157:H7 or verotoxin-producing E coli 0157:H−. These isolates came from 31 patients with diarrhea; only 16 (52%) had a history of hemorrhagic colitis and one patient developed hemolytic uremic syndrome. Although MacConkey-Sorbitol agar was useful as a differential medium for detecting E coli 0157:H7, 14.5% of all specimens yielded nonsorbitol-fermenting isolates. It is not certain whether the routine use of MacConkey-Sorbitol agar is justified when isolation rates of E coli 0157:117 are very low. |
| format | Article |
| id | doaj-art-f016f29cefd847b6a217c8c6d5b4ed5b |
| institution | DOAJ |
| issn | 1180-2332 |
| language | English |
| publishDate | 1990-01-01 |
| publisher | Wiley |
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| series | Canadian Journal of Infectious Diseases |
| spelling | doaj-art-f016f29cefd847b6a217c8c6d5b4ed5b2025-08-20T03:06:00ZengWileyCanadian Journal of Infectious Diseases1180-23321990-01-0111232710.1155/1990/583209The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding CommunitiesAndrew E Simor0Christine WattDonald E Low1Department of Microbiology, Mount Sinai Hospital, Toronto, Ontario, CanadaDepartment of Microbiology, Mount Sinai Hospital, Toronto, Ontario, CanadaVerocytotoxin-producing strains of Escherichia coli, most often serotype 0157:H7, have been associated with both sporadic and epidemic diarrheal disease in Canada. In order to determine the isolation rate of E coli 0157:H7 in outpatients with diarrhea, all stool specimens submitted for culture to Med-Chem Laboratories in Metropolitan Toronto between June 1988 and September 1989 were cultured on MacConkey-Sorbitol agar in addition to standard enteric media. A total of 46 (0.3%) of 16,125 stool specimens yielded E coli 0157:H7 or verotoxin-producing E coli 0157:H−. These isolates came from 31 patients with diarrhea; only 16 (52%) had a history of hemorrhagic colitis and one patient developed hemolytic uremic syndrome. Although MacConkey-Sorbitol agar was useful as a differential medium for detecting E coli 0157:H7, 14.5% of all specimens yielded nonsorbitol-fermenting isolates. It is not certain whether the routine use of MacConkey-Sorbitol agar is justified when isolation rates of E coli 0157:117 are very low.http://dx.doi.org/10.1155/1990/583209 |
| spellingShingle | Andrew E Simor Christine Watt Donald E Low The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding Communities Canadian Journal of Infectious Diseases |
| title | The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding Communities |
| title_full | The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding Communities |
| title_fullStr | The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding Communities |
| title_full_unstemmed | The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding Communities |
| title_short | The Isolation Rate of Escherichia coli 0157:H7 in Toronto and Surrounding Communities |
| title_sort | isolation rate of escherichia coli 0157 h7 in toronto and surrounding communities |
| url | http://dx.doi.org/10.1155/1990/583209 |
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