Missouri Department of Health and Senior Services says Ozarks water infection is rare

 NEWS: We have confirmed a rare brain infection in a Missourian caused by an ameba (also spelled amoeba) called Naegleria fowleri. The infection is known as primary amebic meningoencephalitis (PAM) - it is not contagious, but it is deadly. The patient is being treated in the ICU.

The source of the patient’s exposure is currently being investigated by public health officials. While not confirmed, preliminary information implies the patient may have been participating in water activities at the Lake of the Ozarks days before becoming ill. Recreational water users should assume that Naegleria fowleri is present in any warm freshwater across the U.S.; however, infection remains extremely rare.

The ameba is commonly found in warm freshwater such as lakes, rivers, and ponds; however, PAM is extremely rare. Between 1962 and 2024, there were 167 reported cases of PAM in the United States. The only other cases among Missouri residents were in 1987 and 2022.

Although rare, infection can occur when water containing Naegleria fowleri enters through the nose from freshwater. The ameba travels up the nose to the brain where it destroys brain tissue. It is important to remember that this infection isn't contagious and can't be contracted by swallowing water.

More info: cdc.gov/parasites/naegleria/