The Utah State Public Health Laboratory has confirmed that sample from Cache County have tested positive for West Nile virus.

Health officials in Fort Bend County, just outside Houston, have confirmed their first mosquito sample infected with West ...

Two mosquito samples collected in Hyde Park and West Roxbury tested positive for West Nile Virus— the first positive samples ...

The mosquitoes infected with the virus were discovered in Nesconset on July 1, Suffolk County health officials said ...

Mosquito samples collected in six areas in Allegheny County have tested positive for West Nile Virus, according to the county ...

Mosquitoes collected by the Allegheny County Health Department tested positive for West Nile virus in six areas Tuesday.

Two mosquito test samples taken from Hyde Park and West Roxbury have tested positive for West Nile Virus, the Boston Public ...

Boulder County Public Health confirmed that, last week, mosquitoes trapped on the east side of Niwot tested positive for West ...

A mosquito sample collected in Barnstable has tested positive for West Nile virus -- here's what health officials want you to ...

Mosquitoes in two areas of Weld County have tested positive for West Nile virus, though no human cases have yet been reported ...

West Nile Virus is the leading mosquito-borne disease in the U.S., spread through bites from infected mosquitoes.