Yucatán authorities close six lakes after brain-eating amoeba detection

Health authorities in Yucatán, Mexico, have closed six artificial lakes in Mérida following the detection of the Naegleria fowleri amoeba. The decision comes after the death of a 33-year-old water sports instructor who contracted primary amebic meningoencephalitis.

The affected water bodies include lakes at Plaza La Isla, Cabo Norte, the Centenario Zoo, Gran Parque La Plancha, and the Parque Ecológico del Poniente. While the surrounding parks remain open, contact with the water in these specific locations is strictly prohibited. Sanitation procedures are being conducted with support from the Autonomous University of Yucatán and Cinvestav.

Experts have clarified that the risk to domestic water tanks is extremely low due to municipal chlorination and water circulation. The amoeba typically thrives in warm, stagnant freshwater and is transmitted when water is forced into the nose during activities like swimming or diving, rather than through drinking or person-to-person contact. Authorities are also increasing surveillance in the region's natural freshwater cenotes.