"This is a heat-loving amoeba. As water temperatures go up, it does better," Beach said [Michael Beach, a specialist at the CDC]. "In future decades, as temperatures rise, we'd expect to see more cases."
Once infected, most people have little chance of survival. Some drugs have stopped the amoeba in lab experiments, but people who have been attacked rarely survive, Beach said.
"Usually, from initial exposure it's fatal within two weeks," he said.