How germy is the public pool? An infectious disease expert weighs in on poop, pee and perspiration – and the deceptive smell of chlorine

Most pool-related illnesses won’t kill you, but no one wants to spend their vacation or a week of beautiful summer days in the bathroom.

By: Lisa Cuchara, Quinnipiac University, The Conversation

Outlets: The Conversation

Published: June 8, 2026

Words: 853

Last Updated: 3 weeks ago

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By Lisa Cuchara, Quinnipiac University

On hot summer days, few things are more refreshing than a dip in the pool. But have you ever wondered if the pool is as clean as that crystal blue water appears?

As an immunologist and infectious disease specialist, I study how germs spread in public spaces and how to prevent the spread. I even teach a course called “The Infections of Leisure” where we explore the risks tied to …

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