Florida health officials are urging swimmers to steer clear of stagnant water, which could be home to millions of microscopic killers.
Naegleria fowleri, an amoeba invisible to the naked eye, loves to lurk in warm, standing water, according to a warning released by the Florida Department of Health. And while it’s usually harmless, it can cause a fatal brain infection if inhaled through the nose.
“Wear nose clips, hold your nose shut or keep your head out of the water when swimming, jumping or diving in any freshwater,” the department said in a health alert. “Closing your nostrils may reduce your chance of becoming infected.”