Endemic giardiasis and municipal water supply.
case_control · Level III
Where this comes from
- Record sourced from PubMed, PMID 2029049.
- Also identified by PMC identifier 1405141.
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Abstract
To test the hypothesis that endemic giardiasis may be transmitted by unfiltered municipal water supplies, the incidence of laboratory-confirmed giardiasis was studied in a natural experiment due to the arrangement of the public water supply of Dunedin, New Zealand. The incidence rate ratio was 3.3 (90% CI = 1.1, 10.1) for the population receiving unfiltered (microstrained) water relative to that using sand filtered water. In a parallel case-control study of incident cases, the odds ratio for giardiasis and unfiltered (microstrained) water supply was 1.8 (90% CI = 0.5, 6.9).
Medical subject headings
- Filtration
- Giardiasis
- Water Microbiology
- Water Supply