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Legionella

An undated image of Legionella pneumophila bacteria.
An undated image of Legionella pneumophila bacteria. Image: Centers for Disease Control (AP)

The facilities surrounding a beach can expose us to dangerous germs too, such as Legionella bacteria. A 2007 study found these bacteria in one out of every five samples taken from beach shower stops in Italy; other studies have found these bacteria commonly contaminating other types of showers at recreational water facilities. Legionella bacteria are known for causing Legionaries’ disease, a potentially severe form of pneumonia, but they can also cause the milder flu-like Pontiac fever.