Details:

Alternative Title:
Emerg Infect Dis
Personal Author:
Olsen, Sonja J.; Miller, Gayle; Breuer, Thomas; Kennedy, Malinda; Higgins, Charles; ... More +
Olsen, Sonja J.; Miller, Gayle; Breuer, Thomas; Kennedy, Malinda; Higgins, Charles; Walford, Jim; McKee, Gary; Fox, Kim; Bibb, William; Mead, Paul; Less -
Description:
In the summer of 1998, a large outbreak of Escherichia coli O157:H7 infections occurred in Alpine, Wyoming. We identified 157 ill persons; stool from 71 (45%) yielded E. coli O157:H7. In two cohort studies, illness was significantly associated with drinking municipal water (town residents: adjusted odds ratio=10.1, 95% confidence intervals [CI]=1.8-56.4; visitors attending family reunion: relative risk=9.0, 95% CI=1.3-63.3). The unchlorinated water supply had microbiologic evidence of fecal organisms and the potential for chronic contamination with surface water. Among persons exposed to water, the attack rate was significantly lower in town residents than in visitors (23% vs. 50%, p<0.01) and decreased with increasing age. The lower attack rate among exposed residents, especially adults, is consistent with the acquisition of partial immunity following long-term exposure. Serologic data, although limited, may support this finding. Contamination of small, unprotected water systems may be an increasing public health risk.
Subject:
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Adult
Child, Preschool
Cohort Studies
Diarrhea
Disease Outbreaks
Drinking
Escherichia Coli Infections
Escherichia Coli O157
Female
Hemolytic-Uremic Syndrome
Humans
Infant
Male
Research
Retrospective Studies
Risk Factors
Rural Population
Water Microbiology
Water Supply

Source:
Emerg Infect Dis. 8(4):370-375.;
Document Type:
Journal Article;
Place as Subject:
Wyoming;
Collection(s):
Emerging Infectious Diseases
Main Document Checksum:
[+]
urn:sha256:dacb594280a1467d57d5103ede4bd67407cbffd600fa84ba76a5fb5a10e911b1
File Type:

Supporting Files

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