A 14-year-old boy is in critical condition in a hospital after coming into contact with a rare amoeba while swimming in a lake north of Houston.
Relatives say Michael Riley Jr. developed a headache and fever, and later became disoriented, after swimming with friends Aug. 13.
In online postings, Michael's family said he has Primary Amebic Meningoencephalitis. The disease usually occurs when the Naegleria fowleri amoeba enters the body through the nose and attacks cells in the brain.
The infection causes the brain to swell.
The Centers for Disease Control and Prevention said from 2005 to 2014 the amoeba infected 35 people in the U.S. All but two cases were fatal.
A swimmer died of the disease in Oklahoma earlier this month.
Kyle Lewis, 7, died from the same amoeba disease five years ago this weekend, and his parents say his absence remains difficult.
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"Kyle was gone before they even knew he had the amoeba," said mother Julie Lewis.
Word of the new Texas case hits close to home for the Lewis family.
"Now I know that a mom is sitting next to her boy in the hospital in the same place I was five years ago and it's devastating," Julie Lewis said. "Can't do anything about it and I wish to God I could."
The Kyle Lewis Amoeba Awareness Foundation continues to raise awareness about the deadly disease and offers life-saving nose plugs for parents and their children.
"It's simple, you know, to keep your head above the water if you do decide to get in the water. Put a nose plug on," said father Jeremy Lewis. "Chose to do something else."
NBC 5's Kevin Cokely and The Associated Press contributed to this report.
