States across US are seeing seasonal increase in mosquitoes with West Nile virus

Health departments in the U.S. report finding West Nile virus in mosquito samples, including Cape May County, Denton County, and Suffolk County.

Detection of West Nile Virus

Only 25 human cases of West Nile virus have been reported in 14 states this year, a decrease from 117 cases at the same time last year.

Current Case Count

Suffolk County, NY, has reported 32 positive mosquito samples this season, with virus detection confirmed across all five boroughs of New York City.

Geographical Spread

Mosquitoes become infected with West Nile virus after feeding on infected birds and then transmit it to humans and animals.

Virus Transmission

Most people do not exhibit symptoms, but about 20% experience fever, headaches, body aches, and other symptoms. Severe cases can lead to encephalitis or meningitis.

Symptoms

Out of 25 reported cases this year, 11 have resulted in neuroinvasive disease, which can lead to severe complications or death.

Severe Cases

No vaccines or specific treatments are available. The CDC advises using insect repellant, wearing protective clothing, and controlling mosquito populations.

Prevention

For severe cases, hospitalization and supportive treatments such as intravenous fluids may be necessary.

Health Recommendations