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Mosquito in Norfolk tests positive for West Nile Virus
NORFOLK, VIRGINIA, JUL 22 – Norfolk health officials began mosquito control efforts after detecting West Nile virus in a mosquito sample, with 1 in 150 infected individuals developing severe illness, the health department said.
- A sample collected on Friday, July 18, 2025, tested positive in Norfolk's 1100 block of North Military Highway, marking the first virus activity of the season, according to the Virginia Department of Health.
- Amid rising summer mosquito activity, health officials note that West Nile Virus spreads when mosquitoes feed on infected birds, as mosquito season runs from summer into fall and surveillance will be increased.
- Most infected individuals show no symptoms but illness can include mild and severe neurological signs, with approximately 1 in 150 cases becoming serious, health department said.
- Following the positive test, health officials said crews are treating standing water to control mosquitoes, while residents are advised to use insect repellent and ensure doors and windows are well-screened.
- Residents are advised to drain standing water weekly, avoid outdoor activities at dawn and dusk and wear long, light, loose clothing to reduce mosquito bites.
14 Articles
14 Articles
West Nile Virus detected in Leyden mosquitoes
GREENFIELD, Mass. (WWLP) - West Nile Virus has made its way to western Massachusetts. Local officials are warning the public about any signs of West Nile Virus in their communities. Mass.gov states that on July 15th, a mosquito sample tested positive for West Nile Virus in Leyden. First animal case of West Nile Virus confirmed in Massachusetts The virus is typically transmitted to susceptible animals and humans through the bite of an infec…
West Nile virus found in Orange County mosquito samples
Public health officials on Tuesday said mosquito samples collected in Anaheim and Garden Grove have tested positive for West Nile virus, the first confirmed virus activity this year. There have been four positive mosquito samples collected in those cities, according to the Orange County Mosquito and Vector Control District. So far though, no human cases of the West Nile virus have been reported. A dead bird recovered in Garden Grove also tested …
East Bay bird tests positive for West Nile Virus
(KRON) — A bird infected with West Nile Virus was recently documented in San Ramon. The bird was Contra Costa County’s first to test positive for West Nile Virus in 2025. The Contra Costa Mosquito and Vector Control District warns that infected birds are often the first sign that West Nile Virus is present in the region. Alameda and Santa Clara Counties have also confirmed cases of birds infected with West Nile Virus this year. “We typically sta…
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