Orange County vector control officials have announced a series of treatments to address an increase in mosquitoes and the ...

“West Nile virus is endemic in Orange County, recurring every year during the summer months and continuing into the fall,” said Dr. Clayton Chau, acting county health officer, in a ...

Cases of West Nile virus in 2016 by week in the U.S. Most cases of the virus are reported in the warm summer months, but local vector agencies are warning people of a spike in cases this fall.