On Nov. 4, a 2-year-old Mustang filly in Ada County, Idaho, tested positive for West Nile virus (WNV). The vaccinated filly developed clinical signs on Oct. 29, including acute ataxia in all four ...

West Nile virus is the leading cause of mosquito-borne illness in the continental United States. As of Sept. 23, over 1,100 human cases of West Nile disease have been reported across 42 states, ...

DuPage County officials on Thursday announced the county's first West Nile virus death of the year, the second in Illinois in 2025. A person in their 80s who became ill in August has died of the virus ...

Two horses in Oklahoma have tested positive for West Nile virus (WNV), including one horse in Nowata County and one horse in Oklahoma County. In Nowata County, an unvaccinated, 17-year-old Quarter ...

Oxford, September 22, 2025 – Growing numbers of West Nile virus infection cases, fueled by climate change, are sparking fears among citizens and healthcare providers in Europe. A Clinical Insight in ...

A Placer County man's death has been confirmed as the fifth in California in 2025 to be linked to West Nile virus, public health officials say. Placer County Health and Human Services announced the ...

KENTUCKY (WKYT) - The Lexington-Fayette County Health Department is warning residents about a recent increase in West Nile virus cases after four infections were reported in the city. Health leaders ...