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West Nile, Orange County and Contra Costa Mosquito

First mosquitoes carrying West Nile virus found in Orange County

“Multiple mosquito samples and a dead bird testing positive for West Nile virus indicate that the virus is circulating in the community,” said Amber Semrow, OCMVCD’s director of Scientific and Techni...

· 22h

West Nile virus detected in Contra Costa County

· 2h · on MSN

West Nile virus detected in Orange County mosquito samples

· 21h

Vanderburgh County resident reported as first West Nile case of the year for Indiana

The Indiana Department of Health announced Tuesday that the state's first case of West Nile virus for 2025 has been reported in a Vanderburgh County resident.

· 1d

Significant amount of West Nile carrying mosquitos detected in Tracy

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West Nile virus found in Norfolk

· 15h

West Nile virus detected in mosquitos in Salt Lake County

Utah does see around 12-13 cases of WNV in humans each year, according to Kacy Nowak, with the DHHS epidemiology team.

Colorado Public Radio · 16h

Colorado identifies first human West Nile virus cases of 2025, in Adams County

ABC15 Arizona · 1d

Maricopa County officials confirm first West Nile death of the year

Officials issue warning after confirming troubling West Nile virus trend: 'It is much better to avoid getting this'

The city reported that it had discovered its first West Nile-positive mosquito for the 2025 season in early July. The Daily Camera reported the news, saying that while West Nile virus season was starting early in Colorado's Front Range, experts weren't certain that this would translate into a heavy season for infections.

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