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Brazos River Authority warns Texans about deadly amoeba found in most freshwater bodies

File Photo Courtesy Brazos River Authority
File Photo Courtesy Brazos River Authority(KWTX)
Published: Jun. 5, 2020 at 10:54 AM CDT
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The Brazos River Authority is warning Texans about "a rare but usually fatal illness" it says is caused by a water-born amoeba called Naegleria fowleri that resides in all lakes, streams, rivers and ponds in the state.

Primary Amebic Meningoencephalitis (PAM) is a disease caused by Naegleria fowleri, the amoeba found in almost all untreated, fresh surface water and in soil.

The amoeba thrives in freshwater that is warmer than 80 degrees and stagnant or slow-moving.

The Texas Department of State Health Services (TDSHS) says most PAM infections happen when the temperature is hot and water levels are low.

Officials said PAM only infects people when water containing the amoeba enters through the nose, usually from diving or jumping into freshwater.

The amoeba travels up the nose and makes its way into the brain along the olfactory nerve, destroying brain tissue.

The infection cannot be spread from person to person or by drinking contaminated water.

Those infected with PAM will usually start showing symptoms about 5 days after the infection.

It can often be mistaken for the flu or bacterial meningitis, as early symptoms include headache, fever, nausea or vomiting and can then progress to loss of balance, a stiff neck, seizures and hallucinations.

The disease progresses quickly once the symptoms start and usually causes death within two weeks of the initial infection.

Anyone showing symptoms after getting water up the nose, must immediately seek medical treatment and inform the medical professional you may have been exposed to the amoeba by having freshwater forced up your nose.

Specific tests are required to diagnose the illness in time.

While the disease is rare, identified cases thus far have almost always been fatal and mainly occur during the summer months.

According to the Centers for Disease Control and Prevention, only 4 people in the U.S. out of 145 have survived the infection from 1962 to 2018.

The Brazos River Authority does not test for the Naegleria fowleri amoeba.

Because it is common in all surface water throughout the world, those who live in warmer-weather states such as Texas should assume that there is a risk when entering all warm freshwater bodies.

There are precautions you can follow to help prevent infections. If you do decide to partake in water activities, use nose clips or hold your nose shut while jumping into water.

With the amoeba often found in soil, it’s best to avoid stirring up underwater sediment.

Texas Health and Human Services recommends avoiding water activities in bodies of warm freshwater with low water levels.

Health officials recommend people avoid stagnant or polluted water and take “No Swimming” signs seriously.

Swimming pools and hot tubs that are properly cleaned, maintained and chlorinated are generally safe, as is saltwater.

If water does get up your nose while swimming in warm freshwater, monitor yourself for flu-like symptoms.

If you do start showing symptoms, going to a medical professional and informing them of your recent activities may be able to save your life.

For more information about PAM, please click here or contact the Texas Department of State Health Services Public Information Office at (512) 458-7400.

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