SAN BERNARDINO — The Department of Public Health reported the Mosquito and Vector Control Program has recovered multiple positive indicators for West Nile Virus throughout San Bernardino County, though there are no reported cases in the High Desert.
The virus is transmitted through the bite of an infected mosquito. The Mosquito and Vector Control Program placed chicken flocks in various locations throughout the county to detect the virus. Two chickens from a flock in San Bernardino were reported to have tested positive for West Nile.
The Department said dead birds are also signs of the virus. The MVCP has reported one dead bird in each of the following cities: Fontana, Rialto, San Bernardino and Upland.
A group of mosquitos collected for testing in Upland was also reported to have tested positive for the virus.
People infected with West Nile may experience flu-like symptoms that can include fever, body aches, skin rash, and fatigue. In some individuals, West Nile fever can develop into a more serious form of the disease. If you have been bitten by mosquitoes and are experiencing these symptoms, contact your medical care provider.
Residents can protect themselves from the virus by removing all standing water around property where mosquitos can lay eggs such as birdbaths, green swimming pools, ponds, old tires or even puddles from leaky sprinklers; avoiding spending time outside during dawn and dusk when mosquitos are most active; wearing shoes, socks, long pants and long-sleeved shirts that are loose fitting and light colored; applying insect repellent containing DEET and making sure windows have tight-fitting screens.
If you see a dead bird, submit an online dead bird report on the California West Nile Virus Website at or call 877-968-2473.
To learn more about West Nile Virus, visit To report a green pool or mosquito breeding source, contact the county’s Public Health Division of Environmental Health Services at 800-442-2283 or visit