1. Cryptosporidiosis from a community swimming pool: outbreak investigation and follow-up study
- Author
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R. L. Vogt, Tegan K. Boehmer, N. B. Alden, and Tista S. Ghosh
- Subjects
Adult ,medicine.medical_specialty ,Colorado ,Adolescent ,Epidemiology ,Cryptosporidiosis ,Disease Outbreaks ,Young Adult ,Swimming Pools ,medicine ,Humans ,Child ,Disease burden ,biology ,business.industry ,Incidence ,Outbreak ,Waterborne diseases ,Nitazoxanide ,Cryptosporidium ,medicine.disease ,biology.organism_classification ,Infectious Diseases ,Child, Preschool ,Immunology ,Emergency medicine ,Cohort ,business ,Follow-Up Studies ,Cohort study ,medicine.drug - Abstract
SUMMARYTri-County Health Department investigated an outbreak of cryptosporidiosis linked to a community swimming pool. A cohort study was conducted in 37 persons who were invited to the pool party; 12 (57%) of 21 attendees had primary cryptosporidiosis infection. Risk factors for illness included swimming, getting water in mouth, and swallowing water. The pool met chlorination guidelines and used UV light irradiation, a supplemental disinfection technology that inactivatesCryptosporidium. A follow-up survey of the cohort was completed 7–8 weeks after the pool party; four (25%) of 16 non-attendees had secondary cryptosporidiosis infection. The median duration of illness, including patients with recurring symptoms, was 26 days. Clinical response rate to nitazoxanide, a therapeutic agent, was 67%. This study is unique because it describes a cryptosporidiosis outbreak from a well-maintained community swimming pool using supplemental disinfection. It also reports information on disease burden and treatment response.
- Published
- 2009
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