Posted inHealth Explainer: Amoeba kills child in Tarrant County, but risk of infection is ‘very rare,’ experts say by Alexis Allison September 27, 2021 5:31 pmSeptember 27, 2021 5:31 pm Fewer than 150 known cases of the Naegleria fowleri infection occurred in the U.S. from 1962-2019.