The West Nile virus has been discovered in a dead bird and pool of mosquitoes at Clay Park in South San Francisco, and at the Bruno Canziani park area in Livermore.
Five residents of Santa Clara County have been infected with the West Nile virus, including two who developed the severe neuroinvasive form that can lead to death.
County mosquito control officials will spray for mosquitoes in a roughly square-mile section of East San Mateo tonight to prevent the spread of West Nile virus, county officials said Wednesday.
A group of mosquitoes and several dead birds found throughout Contra Costa County have tested positive for the West Nile virus in recent weeks, Contra Costa County Mosquito and Vector Control District officials said Tuesday.
In an effort to reduce mosquito populations, and the threat of West Nile virus in San Mateo, the San Mateo County Mosquito and Vector Control District said that a fogging operation performed last week was successful.
California health officials have reported that two people have been infected with West Nile Virus in the state. West Nile virus is transmitted through the bite of infected mosquitoes.
Mosquitoes have tested positive for West Nile Virus in San Jose, according to South Bay officials.
Santa Clara County Vector Control will spray insecticides by helicopter on Tuesday morning to prevent the emergence of adult mosquitoes, according to an agency press release.
A dead American crow recently found near the intersection of Danville Blvd. and Camille Pl. in Alamo tested positive for the disease.
As dangerous Yellow Fever Mosquito spreads in the Bay Area, look for white markings, and brown color to identify these smaller insects.