‘Brain-eating amoeba’ causes rare infection in Missouri resident, first case in 35 years

‘Brain-eating amoeba’ causes rare infection in Missouri resident, first case in 35 years

KANSAS CITY, Mo. — The Missouri Department of Health and Senior Services has been notified of a Missouri resident with a laboratory-confirmed infection of Naegleria fowleri.

Naegleria fowleri, commonly known as “brain-eating amoeba,” is a microscopic single-celled free-living ameba that can cause a rare life-threatening infection of the brain called primary amebic meningoencephalitis (PAM).

The Missouri patient is currently being treated for PAM in an intensive care unit of a hospital.

The ameba is commonly found in warm freshwater such as lakes, rivers, and ponds; however, PAM is extremely rare.

Since 1962, only 154 known cases have been identified in the United States. The only other case identified among a Missouri resident occurred in 1987, and currently, no additional suspected cases of PAM are being investigated in Missouri.

A case of PAM in Kansas was reported back in 2014 in which 9-year-old Hally Yust, of Spring Hill died from the infection.

The source of the person’s exposure is currently being investigated by public health officials. Local and out-of-state activity are being considered. Recreational water users should assume that Naegleria fowleri is present in warm freshwater across the United States; however, infection remains rare.

Although a rare occurrence, people become infected by Naegleria fowleri when water containing the ameba enters the body through the nose from freshwater sources.

The Naegleria fowleri ameba then travels up the nose to the brain where it destroys the brain tissue. This infection cannot be spread from one person to another, and it cannot be contracted by swallowing contaminated water.

“These situations are extremely rare in the United States and in Missouri specifically, but it’s important for people to know that the infection is a possibility so they can seek medical care in a timely manner if related symptoms present,” said Dr. George Turabelidze, Missouri’s state epidemiologist.

People can take actions to reduce the risk of infection by limiting the amount of water going up the nose.

These actions could include:

• Hold your nose shut, use nose clips, or keep your head above water when taking part in water-related activities in bodies of warm freshwater.
• Avoid putting your head under the water in hot springs and other untreated thermal waters.
• Avoid water-related activities in warm freshwater during periods of high-water temperature.
• Avoid digging in, or stirring up, the sediment while taking part in water-related activities in shallow, warm freshwater areas.

Those who experience the following symptoms after swimming in any warm body of water should contact their health care provider immediately as the disease progresses rapidly:

• Severe headache.
• Fever.
• Nausea.
• Vomiting.
• Stiff neck.
• Seizures.
• Altered mental status.
• Hallucinations.

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