News Release
For Immediate Release   -   August 17 , 2018
Contact: Nola Woods, Public Affairs Director

Direct:  925.771.6158
Cell:  925.250.6502

Citizens Urged to Protect Themselves Against Mosquito Bites
CONCORD, CALIFORNIA - The Contra Costa Mosquito & Vector Control District is reporting mosquitoes from Oakley, Martinez, Holland Tract, Discovery Bay, and Quimby Island; dead birds from Brentwood, Discovery Bay, Antioch, and Concord; and chickens from Holland Tract have all tested positive for West Nile virus. This is the first West Nile virus activity of the year in   Antioch,  Quimby Island  and Concord. 

So far this year, ten groups of mosquitoes, eight dead birds, and 13 chickens  from Contra Costa County have tested positive for the virus.  

According to the District's Scientific Programs Manager Steve Schutz, Ph.D., "As we enter the peak of West Nile virus season we're starting to see more widespread activity. People in all areas of Contra Costa County should be protecting themselves against mosquito bites."

Steps to avoid mosquito bites:
  • Stay indoors when mosquitoes can be present. Mosquitoes that can transmit West Nile virus are active at dawn and dusk.
  • Wear mosquito repellent when outside. Repellents containing DEET, Picaridin, or Oil of Lemon Eucalyptus are most effective and are recommended by the Centers for Disease Control and Prevention (CDC).
To further reduce the risk of contracting West Nile virus and other mosquito-borne diseases:
  • Dump or drain standing water to prevent mosquitoes. Most mosquitoes can't start their lives without water.
  • Report dead birds to the state hotline: 1-877-968-2473. Birds are often the first sign of disease transmission in a particular area. Ravens, jays, crows, and magpies can be susceptible to the virus, and may die if infected. 
Even if the birds are not tested, the reports alone yield crucial information to protect public health.

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For a list of Contra Costa County's  2018 West Nile virus activity and locations, visit the  District's website

Since 2005, 63 Contra Costa County residents have been diagnosed with West Nile virus. In 200 6, two people died from the disease. For current human case information, please contact Contra Costa Health Services at 888-959-9911.

Contra Costa Mosquito & Vector Control District, an independent special district and public health agency, is located at 155 Mason Circle in Concord. Contact the District to report mosquito problems online or at (925) 685-9301. Visit the office between 8:00 a.m. and 4:30 p.m. to get FREE mosquitofish for ornamental ponds, horse troughs or neglected swimming pools.
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Contra Costa Mosquito & Vector Control