Mosquitoes, West Nile virus activity looks increasingly bad this year in OC
Southern California health officials warn of rising West Nile virus activity and peak mosquito populations amid an ongoing heat wave.
16 trends tracked about this subject — the full history, oldest to newest below.
Southern California health officials warn of rising West Nile virus activity and peak mosquito populations amid an ongoing heat wave.
Maine health officials confirm a third case of the rare tick-borne Powassan virus this year, coinciding with a reported death in Brewer.
Health authorities in Louisville have confirmed the first human case of West Nile virus, triggering immediate mosquito control measures.
Health officials are issuing warnings across North and South Carolina after West Nile virus was detected in regional mosquito populations.
Public health agencies issue urgent warnings as West Nile virus season sees a strong, early start nationwide.
Health officials are issuing precautions after the first detection of West Nile virus in Oregon for 2026, identified in Southern Oregon mosquitoes.
Milford, Connecticut, marks a rare five-year streak of annual West Nile virus detections following the state's first 2026 positive mosquito test.
Urgent warnings emerge as a brain-swelling disease surges across multiple Southern California neighborhoods amid wider health alerts.
West Nile virus activity is rising rapidly across the United States, marked by an unusually early start to the disease season.
The CDC warns of a record-breaking West Nile virus season with the highest case numbers by late June since 2004.
The CDC has issued a warning regarding an early start to West Nile virus season as cases reach record levels not seen since 2004.
15 news sources are covering this Health story right now — PULSE is tracking how fast it spreads.
7 news sources are covering this Health story right now — PULSE is tracking how fast it spreads.
6 news sources are covering this Health story right now — PULSE is tracking how fast it spreads.
6 news sources are covering this Health story right now — PULSE is tracking how fast it spreads.
Chicago area reports first West Nile virus-positive mosquitoes of 2026, prompting early health alerts