West Nile Virus Detected In American Crow From Walnut Creek

An American crow from Walnut Creek is the second bird to test positive for West Nile virus, the Contra Costa Mosquito and Vector Control District said Friday. Birds are the main reservoir for the virus, which is transmitted to humans and animals through the bite of an infected mosquito. Alameda, Santa Clara, and Solano counties have also reported infected birds. Serious infection symptoms can include fever, severe headaches, stiff neck, disorientation, or confusion. “Our recent hot weather can increase the risk of West Nile virus, as the heat allows mosquitoes to develop from egg to adult more quickly,” said Steve Schutz, the district’s scientific program manager. To control mosquitoes, the district recommends dumping out any standing water at least once a week. Contra Costa County residents can report dead birds by phone at (877) WNV-BIRD (968-2473) or online. County residents can also request mosquito service for residential property by calling (925) 685-9301 or online.