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West Nile Virus

New York City Confirms First West Nile Cases of 2025 as Mosquito Activity Rises in U.S.

Health departments are launching targeted spraying in response to rising positive mosquito pools during the late‑summer peak.

Chicago Elevates West Nile Risk to High After First Human Cases Confirmed

Austin Public Health Investigates First Suspected West Nile Virus Case in Travis County

West Nile Virus Detected in San Antonio Mosquitoes; Denver Confirms First Human Case

Wisconsin, Texas and Toronto Report First West Nile Virus Human Cases of 2025

Early West Nile Virus Surge Drives Third Illinois Human Case, Elevated County Risk

First Local West Nile Death Reported in Latina Province as Six Others Confirmed

West Nile Virus Detected in Mosquitoes in Philadelphia and Four NYC Boroughs

West Nile Virus Confirmed in Massachusetts Goat as Illinois Reports Second Human Case

West Nile Virus Found in Connecticut Mosquitoes as Illinois Sees Earliest Human Case Since 2016

First West Nile Virus Cases of 2025 Confirmed in Harris County and Baytown

West Nile Virus Detected in Mosquitoes Across McHenry and DuPage Counties

West Nile Virus Detected in UK Mosquitoes and First 2025 Case Confirmed in Harris County, Texas

West Nile Virus Detected in UK Mosquitoes for First Time

Climate Change Drives Spread of Deadly Mosquito-Borne EEE Virus

West Nile Virus Claims Five Lives in U.S. as Cases Surge

Climate Change Fuels Spread of Deadly Mosquito-Borne Virus

Longer Mosquito Seasons Increase West Nile Virus Risk

West Nile Virus Claims Lives as Cases Surge Across the U.S.