Symptoms of illness may appear three days to two weeks after an infection, Weld County said last week. Most people show no ...

West Nile virus detected in Fulton County, prompting local health officials to increase mosquito control efforts.

See a K9 beagle's first day back at work after being assaulted by a traveler ...

Two mosquito samples taken from Boston last week tested positive for West Nile virus. See which neighborhoods they came from ...

Get out the bug spray and be mindful about covering up at dusk and dawn. Mosquitoes infected with West Nile Virus have been ...

On Friday evening, the Allegheny County Health Department announced that West Nile Virus had been found in mosquito samples ...

Dallas County Health and Human Services confirmed two mosquito samples testing positive for the West Nile Virus in Carrollton ...

Older adults and immunocompromised people can be at higher risk for developing serious illness or death, the Oregon Health Authority said.

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

Samples collected from West Roxbury and Hyde Park are the first to test positive for West Nile Virus in Boston this summer.

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