Lifeguards who keep watch over swimmers at indoor pools with water sprays, waterfalls, and water slides are at risk of developing granulomatous pneumonitis from bacteria that become aerosolized in the sprays.
In a new study published last month in the American Journal of Public Health, researchers in Denver and Boston reported on two outbreaks of the respiratory illness at a municipal indoor pool that featured waterfalls, a slide, sprays, and a fountain. In the first outbreak, 56 of 129 pool employees studied had at least two work-related respiratory symptoms.
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