Naegleria fowleri

Naegleria fowleri is a microscopic, free-living amoeba commonly found in warm freshwater environments such as lakes, rivers, and hot springs. It is often referred to as the "brain-eating amoeba" because it can cause a rare and devastating infection of the brain called primary amebic meningoencephalitis (PAM). Recently, an 8-year-old girl in Louisiana, Lillian Smart, died from this infection after swimming in Lake Claiborne. The amoeba typically enters the body when contaminated water is forced up the nose, allowing it to travel to the brain. While infections are extremely rare, PAM is almost always fatal, making these cases highly newsworthy and a cause for public health concern, especially during warmer months when recreational water activities increase. The tragic death highlights the importance of awareness regarding the risks associated with swimming in untreated warm freshwater.