Outbreak of giardiasis associated with a community drinking-water source.
Epidemiol Infect
; 138(4): 491-500, 2010 Apr.
Article
em En
| MEDLINE
| ID: mdl-19751538
ABSTRACT
Giardiasis is a common waterborne gastrointestinal illness. In 2007, a community giardiasis outbreak occurred in New Hampshire, USA. We conducted a cohort study to identify risk factors for giardiasis, and stool and environmental samples were analysed. Consuming tap water was significantly associated with illness (risk ratio 4.7, 95% confidence interval 1.5-14.4). Drinking-water samples were coliform-contaminated and a suspect Giardia cyst was identified in a home water filter. One well was coliform-contaminated, and testing indicated that it was potentially under the influence of surface water. The well was located 12.5 m from a Giardia-contaminated brook, although the genotype differed from clinical specimens. Local water regulations require well placement at least 15 m from surface water. This outbreak, which caused illness in 31 persons, represents the largest community drinking-water-associated giardiasis outbreak in the USA in 10 years. Adherence to well placement regulations might have prevented this outbreak.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água
/
Surtos de Doenças
/
Giardíase
/
Giardia
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
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Aged80
/
Animals
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Child
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Child, preschool
/
Female
/
Humans
/
Male
País/Região como assunto:
America do norte
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article