A Marin County resident has tested positive for the West Nile virus, marking the first case detected in a person in the county this year, health officials said Friday.
Two crows located in Contra Costa County tested positive for the West Nile virus Tuesday, according to the Contra Costa Mosquito and Vector Control District.
There have been 19 cases of West Nile virus in the state this year, including Santa Clara and Contra Costa counties. The San Francisco Health Department is now asking the public’s help in preventing the spread of mosquitoes that may carry the virus. Nader Shatara, the head of Vector Control for the San Francisco Health Department, said residents should beware of standing water where mosquitoes breed.
Vector control crews plan to spray chemicals in West San Jose Tuesday night to curb spread of the West Nile virus.