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Mosquito Surveillance

All articles tagged with #mosquito surveillance

Cascade County logs Montana's 2026 West Nile case
health4 days ago

Cascade County logs Montana's 2026 West Nile case

Montana health officials confirm the state's first human West Nile virus case of 2026 in Cascade County, likely locally acquired after a nearby mosquito pool tested positive; officials say the case appears isolated but expect more cases as mosquito season continues. Most people infected are asymptomatic (~80%), about 20% develop symptoms, and fewer than 1% can have severe nervous-system illness; prevention guidance includes wearing protective clothing, draining standing water, using EPA-registered repellents, and avoiding dawn/dusk outdoors while surveillance continues.

New York City Sees West Nile Virus in Mosquito Pools Nearly Double This Year
health25 days ago

New York City Sees West Nile Virus in Mosquito Pools Nearly Double This Year

New York City is seeing a surge in West Nile virus in mosquitoes, with 612 West Nile virus–positive mosquito pools detected by July 25—nearly double last year’s 326—prompting expanded mosquito surveillance and four targeted control operations. No human cases have been reported yet. Health officials remind residents to use EPA‑registered repellents, limit outdoor activity at dawn and dusk, repair screens, and remove standing water as part of the ongoing June–October transmission season.

West Nile detected in Coachella Valley triggers health push
health3 months ago

West Nile detected in Coachella Valley triggers health push

A mosquito sample from the North Shore area of the Coachella Valley tested positive for West Nile virus, marking the season’s first detection. Officials are boosting mosquito surveillance and urging residents to prevent breeding and protect themselves from bites, with no human cases reported yet; older adults and the immunocompromised remain at higher risk.

Mosquitoes in Wichita Falls carry SLE Virus
health2 years ago

Mosquitoes in Wichita Falls carry SLE Virus

Mosquitoes collected from traps in Wichita Falls, specifically in mosquito zone 13, have tested positive for Saint Louis Encephalitis (SLE). The Wichita Falls-Wichita County Public Health District's routine mosquito surveillance program identified the presence of certain mosquito species capable of spreading diseases. No human cases of SLE have been reported, but individuals experiencing flu-like symptoms after a mosquito bite are advised to contact healthcare providers. The Health District recommends following the Four D's to reduce the risk of infection: Dump/Drain standing water, use Deet insect repellent, Dress appropriately, and avoid outdoor activities during Dusk/Dawn. The Health District will continue mosquito control measures, including testing mosquitoes, treating standing water, and spraying when conditions permit.