In water, soil and air all around us lives a free-living, single-celled organism called Acanthamoeba. Most of the time, Acanthamoeba keeps to itself. On rare occasions, though, the amoeba infects ...

Some deadly amoebas may be primed to invade the brain. Naegleria fowleri, known widely as the brain-eating amoeba, typically dine on bacteria in ponds. But the amoeba’s meal-seeking skills might make ...

PHOENIX — It seemed like a headache — nothing more. But when painkillers and a trip to an emergency room didn't fix Aaron Evans, the 14-year-old asked his father if he was going to die. "No, no," ...

Brain-eating amoebas have taken up residence in Tucson's water supply as recent tests have shown their presence in 12 wells. While the discovery of the killer amoeba, known as Naegleria fowleri, is ...