West Nile Virus Detected in Dead Bird In San Mateo CountySan Mateo County's Mosquito and Vector Control District detected West Nile virus in a dead bird this week, the first case in the county since 2018.
West Nile Infested Mosquitoes Discovered Near Byron; First 2020 Detection In Contra Costa CountyMosquitoes trapped earlier this week near Byron have tested positive for West Nile virus, Contra Costa County vector control officials said.
Mosquitoes Test Positive For West Nile Virus In Los Altos Hills; Spraying PlannedTargeted spraying will be conducted Thursday in an area that includes part of Los Altos Hills after two adult mosquitoes tested positive for West Nile virus.
Santa Clara County Plans To Treat Areas Where West Nile Virus FoundVector control officials in Santa Clara County on Friday confirmed that multiple mosquitoes collected from the 95054, 95051 and 95050 ZIP codes tested positive for West Nile virus.
Mosquitoes With West Nile Virus Found In MilpitasCrews with Santa Clara County Vector Control plan to spray mosquito control treatments in parts of Milpitas later this week, after insects that have the West Nile Virus were found.
Elderly Man Diagnosed With 2018's First Case Of St. Louis Encephalitis In CaliforniaHealth officials have reported the first human case of Saint Louis encephalitis in Los Angeles County since 1997 -- and the first case of the virus in California this year.
State Health Officials Announce First West Nile Deaths In 2018California health officials confirmed two deaths in state due to West Nile virus -- one each in Glenn County and Yuba County.
Dead Birds, Mosquitoes Test Positive For West Nile In CoCo CountyThe birds were discovered in Brentwood, Antioch and Pleasant Hill, while the mosquitoes were found in Oakley.
West Nile Virus Detected In Birds, Mosquitoes In Contra Costa CountyTwo dead birds found and a group of mosquitoes were the first cases of West Nile virus detected in Contra Costa County this year.
California's Rainy Winter Likely To Give Mosquito Populations A BoostAfter years of drought the mosquito population is poised to make a comeback -- with a vengeance.
California's Booming Mosquito Population Puts Public At Increasing RiskIf you think you’re seeing more mosquitoes these days, you’re right. A new study from UC Santa Cruz shows the mosquito population in our state is growing at an astonishing rate.
3 Human Cases Of West Nile Virus Confirmed In Solano CountyThree confirmed cases of West Nile Virus in humans were found by state health officials this week in Solano County, the county's top health officer said Thursday.
Mosquitos In San Jose Test Positive For West Nile VirusAdult mosquitoes collected from three San Jose ZIP codes have tested positive for West Nile virus: 95112, 95131 and 95133.
West Nile Virus Found In Dead Bird, Chickens In OakleyThe bird was found near Trenton Street and Oakley Road and the chickens were located near Rose Avenue and Main Street.
Mosquitoes Test Positive For West Nile Virus In Contra Costa CountyTwo groups of mosquitoes in separate Contra Costa County communities tested positive for West Nile virus.