COLUMBIA, S.C.—Two weeks after Jaysen Carr spent the Fourth of July swimming and riding on a boat on one of South Carolina’s most popular lakes, he was dead from an amoeba that lives in the warm water and entered his brain through his nose.
His parents had no clue the brain-eating amoeba, whose scientific name is Naegleria fowleri, even existed in Lake Murray, just 15 miles (24 kilometers) west of Columbia.
