Brain-Eating Amoeba Naegleria fowleri Found in Nevada Hot Springs
Nevada officials have issued a warning to visitors about the presence of a deadly brain-eating amoeba, known as Naegleria fowleri, at Lake Mead. The amoeba, which has a near 100% infection fatality rate, was discovered in the hot springs located below the Hoover Dam, according to Lake Mead National Recreation Area.
Naegleria fowleri enters the body through the nose and can cause a severe infection that manifests as a sudden and severe headache, fever, and vomiting. To prevent the spread of the amoeba, the national recreation area has advised visitors to avoid diving, splashing water, or submerging in hot spring waters.
In the United States, there have been four reported deaths this year from Naegleria fowleri infections. The amoeba typically enters the nose during submersion in fresh water, primarily while swimming. It can cause a deadly condition called primary amebic meningoencephalitis (PAM), which destroys brain tissue.
Unfortunately, the survival rate for individuals infected with Naegleria fowleri is extremely low, with only four out of 157 known cases in the United States between 1962 and 2022 resulting in survival. This means the death rate is over 97%.
Earlier this year, a 17-year-old girl from Georgia died after becoming infected while swimming in a lake with friends. Another fatality occurred in Florida when a man used tap water containing Naegleria fowleri to wash his face and rinse his sinuses.
The amoeba thrives in warm water and shows peak growth during July, August, and September, according to the Centers for Disease Control and Prevention (CDC). Some experts believe that climate change could contribute to increased Naegleria fowleri infections, as rising air temperatures lead to higher water temperatures in lakes and ponds, creating a more favorable environment for the amoeba.
It is crucial for visitors to be aware of the risks associated with Naegleria fowleri and take necessary precautions to minimize exposure. While the chances of infection are relatively low, it is recommended to avoid activities that involve submersion in fresh water, particularly during the summer months when the amoeba is most prevalent.
Authorities and health organizations continue to monitor the situation and provide guidance to the public. Stay informed about any updates or advisories issued by local health authorities to protect yourself and your loved ones.
