Press Release from Contra Costa MVCD
August 10, 2018
CONCORD, CALIFORNIA – The Contra Costa Mosquito & Vector Control District is reporting mosquitoes from Oakley and Discovery Bay and two dead birds from Discovery Bay have tested positive for West Nile virus. This is the fifth group of mosquitoes and the third dead bird from Contra Costa County so far this year to test positive for the virus.
According to the District’s Scientific Programs Manager Steve Schutz, Ph.D., “West Nile virus activity typically peaks in August and September, when baby birds have left their nests and mosquitoes begin to feed on humans more often. This puts people at higher risk of virus transmission and so it’s important for Contra County residents to take steps now to avoid mosquito bites.”
Mosquitoes that can transmit West Nile virus are active at dawn and dusk.
Steps to take now to avoid mosquito bites:
- Stay indoors in the evening when mosquitoes can be present
- 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).