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Public health officials confirmed on Thursday that a resident of Solano County tested positive for West Nile virus.
"West Nile virus is most commonly transmitted to people and animals through the bite of a mosquito infected with the virus," Dr. Christine Wu, the deputy health officer for Solano County, said in a statement.
"Residents should take the necessary precautions to reduce the risk of getting an infection by using insect repellent when spending time outdoors and removing standing water sources around the home," Dr. Wu said.
The California Department of Public Health says seven people have tested positive for West Nile virus in the state since the start of the year.