PHOENIX - It sounds like science fiction but it's true: A killer amoeba living in lakes enters the body through the nose and attacks the brain where it feeds until you die.

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It was on David Evans' birthday Sept. 8 that he brought Aaron, his other two children, and his parents to Lake Havasu. They ate sandwiches and spent a few hours splashing around.

"For a week, everything was fine," Evans said.

Then Aaron got the headache that wouldn't go away. At the hospital, doctors first suspected meningitis. Aaron was rushed to another hospital in Las Vegas.

"He asked me at one time, 'Can I die from this?'" David Evans said. "We said, 'No, no.'"

On Sept. 17, Aaron stopped breathing as his father held him in his arms.

"He was brain dead," Evans said. Only later did doctors and the CDC determine that the boy had been infected with Naegleria.

"My kids won't ever swim on Lake Havasu again," he said.

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""This is a heat-loving amoeba. As water temperatures go up, it does better," Beach said. "In future decades, as temperatures rise, we'd expect to see more cases."

According to the CDC, the amoeba called Naegleria fowleri (nuh-GLEER-ee-uh FOWL'-erh-eye) killed 23 people in the United States, from 1995 to 2004. This year health officials noticed a spike with six cases — three in Florida, two in Texas and one in Arizona. The CDC knows of only several hundred cases worldwide since its discovery in Australia in the 1960s."

How did Gunker find a pic of that Amoeba so quick?