Brain-Eating Amoeba Detected in U.S. Recreational Areas Amid Rising Temperatures
Brain-eating amoeba found in popular recreation areas

Image: The Week
The Naegleria fowleri amoeba, which can cause a fatal brain infection, has been found in 34% of water samples from popular U.S. recreational sites, including Yellowstone and Grand Teton National Parks. With rising temperatures, experts warn that the risk of infection may increase, emphasizing the importance of preventative measures.
- 01Naegleria fowleri was detected in 34% of water samples tested from 40 recreational waterways across five National Park Service sites.
- 02The amoeba thrives in warm freshwater environments, particularly in temperatures up to 115 degrees Fahrenheit.
- 03Infection occurs primarily when water enters the nasal cavity during swimming or diving, with a fatality rate of 98%.
- 04Symptoms of primary amoebic meningoencephalitis (PAM) include headache, fever, and confusion, with rapid progression leading to death within 1 to 18 days.
- 05Experts recommend keeping water out of the nose while swimming and avoiding shallow waters where the amoeba is more likely to be found.
Advertisement
In-Article Ad
The Naegleria fowleri amoeba, known for causing a rare and fatal brain infection called primary amoebic meningoencephalitis (PAM), has been detected in 34% of water samples from popular recreational sites in the United States, including Yellowstone National Park and Lake Mead National Recreation Area. A recent study published in the journal ACS ES&T Water tested 185 water samples across 40 waterways and found the amoeba in several locations with high recreational use. The amoeba thrives in warm freshwater environments, particularly in temperatures reaching 115 degrees Fahrenheit, which is concerning as water temperatures in western parks are rising due to climate change. Infection typically occurs when the amoeba enters the nasal cavity while swimming or diving, with symptoms including headache, fever, and confusion. The infection progresses rapidly, often leading to death within 1 to 18 days. Experts advise preventative measures such as keeping water out of the nose and avoiding shallow waters. The findings highlight the need for enhanced monitoring and public awareness regarding the risks associated with recreational waters.
Advertisement
In-Article Ad
The presence of Naegleria fowleri in popular recreational waters raises health concerns for swimmers and outdoor enthusiasts, particularly in warmer climates.
Advertisement
In-Article Ad
Reader Poll
Are you concerned about the risks of Naegleria fowleri in recreational waters?
Connecting to poll...
Read the original article
Visit the source for the complete story.


