* Refers to recreational water in venues such as pools, hot tubs, water playgrounds, or other artificially constructed structures that are intended for recreational or
therapeutic purposes.
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Health cases associated with treated recreational water U.S. 2015-2019, by etiology
Between 2015 and 2019, the parasite Cryptosporidium accounted for of the total health cases resulting from treated recreational water.
This statistic depicts the number of cases associated with treated recreational water in the U.S. from 2015 to 2019, by etiology.
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CDC, & MMWR. (May 21, 2021). Number of health cases associated with treated recreational water in the U.S. from 2015 to 2019, by etiology* [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved August 05, 2026, from /statistics/865335/number-of-health-cases-due-to-treated-water-in-us-by-etiology/
CDC, und MMWR. "Number of health cases associated with treated recreational water in the U.S. from 2015 to 2019, by etiology*." Chart. May 21, 2021. ÌÇÐÄÆÆ½â°æ. Accessed August 05, 2026. /statistics/865335/number-of-health-cases-due-to-treated-water-in-us-by-etiology/
CDC, MMWR. (2021). Number of health cases associated with treated recreational water in the U.S. from 2015 to 2019, by etiology*. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: August 05, 2026. /statistics/865335/number-of-health-cases-due-to-treated-water-in-us-by-etiology/
CDC, and MMWR. "Number of Health Cases Associated with Treated Recreational Water in The U.S. from 2015 to 2019, by Etiology*." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 21 May 2021, /statistics/865335/number-of-health-cases-due-to-treated-water-in-us-by-etiology/
CDC & MMWR, Number of health cases associated with treated recreational water in the U.S. from 2015 to 2019, by etiology* ÌÇÐÄÆÆ½â°æ, /statistics/865335/number-of-health-cases-due-to-treated-water-in-us-by-etiology/ (last visited August 05, 2026)
Number of health cases associated with treated recreational water in the U.S. from 2015 to 2019, by etiology* [Graph], CDC, & MMWR, May 21, 2021. [Online]. Available: /statistics/865335/number-of-health-cases-due-to-treated-water-in-us-by-etiology/