An 8-year-old girl, Lillian Smart from Ruston, Louisiana, died after contracting the rare brain-eating amoeba Naegleria fowleri, likely while swimming in Lake Claiborne, approximately 30 miles northwest of her home, according to her family and health officials. The Louisiana Department of Health announced the probable contraction of the amoeba, which thrives in warm freshwater and can cause a fatal neurological infection when water containing the organism enters the nose and reaches the brain. The infection, while extremely rare, is nearly always fatal, as was the case with Lillian, who suffered severe brain swelling from the parasite.

Lillian was admitted to the hospital with a fever that progressed to double vision and was subsequently placed in intensive care. Her family reported that the brain injuries were too severe for her body to recover. The Louisiana Department of Health noted that Naegleria fowleri infections are exceedingly rare, with only 180 confirmed cases between 1937 and 2025, three of which occurred in Louisiana. Recent research suggests that climate change may be expanding the geographical range of the amoeba by warming freshwater bodies in northern and midwestern states. Early symptoms of the infection include headache, fever, nausea, and vomiting, progressing rapidly to more severe neurological manifestations.

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