Experts: Lake Mead brain-eating amoeba death among few in US
LAS VEGAS (AP) — The death of a Las Vegas-area teenager from a rare brain-eating amoeba that investigators think he was exposed to in warm waters at Lake Mead should prompt caution, not panic, among people at freshwater lakes, rivers and springs, experts said Friday.
“It gets people’s attention because of the name,” former public health epidemiologist Brian Labus said of the naturally occurring organism officially called Naegleria fowleri but almost always dubbed the brain-eating amoeba. “But it is a very, very rare disease.”
The federal Centers for Disease Control and Prevention has tallied just 154 cases of infection and death from the amoeba in the U.S. since 1962, said Labus, who teaches at the School of Public Health at the University of Nevada, Las Vegas. Almost half those cases were in Texas and Florida. Only one was reported in Nevada before this week.
“I wouldn’t say there’s an alarm to sound for this,” Labus said. “People need to be smart about it when they’re in places where this rare amoeba actually lives.” The organism is found in waters ranging from 77 degrees Fahrenheit (25 Celsius) to 115 degrees (46 C), he said.
The Southern Nevada Health District did not identify the teen who died, but said he may have been exposed to the microscopic organism during the weekend of Sept. 30 in the Kingman Wash area on the Arizona side of the Colorado River reservoir behind Hoover Dam. The district publicized the case on Wednesday, following confirmation of the cause from the CDC.
The district and the Lake Mead National Recreation Area, which oversees the lake and the Colorado River, noted the amoeba only infects people by entering the nose and migrating to the brain. It is almost always fatal.
“It cannot infect people if swallowed, and is not spread from person to...