First West Nile Virus Positive Mosquitoes Confirmed in Orange County. As of 07/09/20 West Nile virus (WNV) positive mosquito samples have been detected in three Orange County cities: Anaheim, Cypress and Garden Grove. The District has also confirmed that one WNV positive dead bird was collected in City of Irvine.
https://www.ocvector.org/files/aee621534/WNVFirstDetection07092020Final.pdf
https://www.ocvector.org/files/aee621534/WNVFirstDetection07092020Final.pdf