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American Journal of Public Health logoLink to American Journal of Public Health
. 1984 Jun;74(6):602–604. doi: 10.2105/ajph.74.6.602

Waterborne giardiasis at a mountain resort: evidence for acquired immunity.

G R Istre, T S Dunlop, G B Gaspard, R S Hopkins
PMCID: PMC1651646  PMID: 6721017

Abstract

In November 1981, an outbreak of waterborne giardiasis occurred at a popular ski resort in Colorado. Stratification of illness by consumption of municipal tap water showed a striking dose-response, with an attack rate of 42 per cent among persons who drank six or more glasses of water per day. Filtered water samples revealed Giardia cysts in specimens both before and after treatment, and several deficiencies were found in the water treatment facility. Residents who had lived in the area greater than 2 years had a lower attack rate for illness than short-term residents.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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