The Louisiana Animal Disease Diagnostic Laboratory has confirmed positive mosquito samples for West Nile Encephalitis (WNV) from August 25, 2025, in Hahnville (Zone 306), St. Rose (Zone 314) and North Norco (Zone 322).
VDCI personnel will inspect the immediate area, increase sampling, enhance surveillance, and spray the affected areas on the evenings of August 29th, 30th, and 31st (weather permitting) with truck-mounted sprayers. Elevated mosquito abatement operations will continue until mosquito numbers fall below established threshold levels.
Residents can take actions to protect themselves from bites, such as avoiding being outside at dawn and dusk, wearing pants and long sleeves, and using insect repellent containing DEET. To eradicate mosquito breeding sites, dump any standing water around your home.
