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Brentwood & Antioch are high risk areas for West Nile virus infection

By Gary Bogue
Friday, July 25th, 2008 at 6:31 am in Mosquitoes, West Nile virus.

Utilizing the state’s virus-modeling program, the Contra Costa Mosquito & Vector Control District has identified southeast Brentwood as a high risk area for West Nile virus (WNV) infection. The area is Central Boulevard to the north, Guthrie Lane to the east, Creek Road and Claremont Drive to the west, and Payne Avenue to the south. Antioch remains at high risk for WNV infection as well.

In addition, virus-positive dead birds from Antioch and Walnut Creek, as well as two virus-positive squirrels from Antioch are being reported.

“Utilizing a modeling system to predict where human cases may occur is a huge advantage,” said Deborah Bass, public affairs manager with the Contra Costa Mosquito & Vector Control District. “It allows our District to put forth a concentrated effort into the high risk areas in our county in order to protect our residents’ health.”

In Contra Costa County to date this year, there have been eight dead birds (one from Alamo, one from Knightsen, one from Walnut Creek, and five from Antioch), six groups of mosquitoes (one from Holland Tract and five from Antioch), and two squirrels from Antioch that have tested positive for West Nile virus. So far this year, no human cases have been reported.

District officials continue to urge property owners to routinely check their yards, to dump mosquito water sources, and to properly maintain their water features. Abandoned or neglected swimming pools are especially worrisome as they can produce hundreds of thousands of mosquitoes and affect residents up to a five-mile radius.

Contra Costa Mosquito & Vector Control District is located at 155 Mason Circle in Concord. Call the District to report mosquito problems at 925-771-6195, or visit their office between 8 a.m. and 4:30 p.m. to get FREE mosquitofish for ornamental ponds or horse troughs.

People wishing to be notified about adult mosquito fogging or spraying have several options. They may visit the District’s Web site at and opt to receive the notifications automatically by e-mail, they can view information on the District Web site, or they may phone the District for a recorded message at 925-771-6195.

For information concerning human West Nile virus symptoms, prevention, or testing, please call the Contra Costa Health Services department at 888-959-9911 or visit their website at

For information concerning West Nile virus and horses, please visit the California Department of Food and Agriculture Animal Health Branch at or call them at 916-654-1447.

NOTE: Dead birds should be reported to 877-968-2473 or Not all birds will be picked up and tested, but reporting dead birds provides important information for mosquito control efforts.
Deborah Bass, Public Affairs Manager, Contra Costa Mosquito & Vector Control District

Please report dead birds or dead squirrels to 877-968-2473. This will help them to pinpoint problem areas for the virus so they can focus their control efforts on those spots. That will help a lot to control the virus. Thanks. /Gary

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