Outbreak of giardiasis associated with a community drinking-water source
| Autor: | J. S. Manning, D. D. Blaney, S. J. Roy, Lihua Xiao, Jason W. Stull, Elizabeth R. Daly, Vincent R. Hill |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Adult
Giardiasis Male medicine.medical_specialty Adolescent Genotype Epidemiology Polymerase Chain Reaction Microbiology Disease Outbreaks Young Adult Enterobacteriaceae Environmental health Medicine Animals Humans New Hampshire Child Aged Aged 80 and over biology business.industry Public health Giardia Outbreak Waterborne diseases Water Sequence Analysis DNA DNA Protozoan Middle Aged medicine.disease biology.organism_classification Coliform bacteria Infectious Diseases Relative risk Child Preschool Female business Cohort study |
| Zdroj: | Epidemiology and infection. 138(4) |
| ISSN: | 1469-4409 |
| Popis: | SUMMARYGiardiasis 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 suspectGiardiacyst 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 aGiardia-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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|