Mosquito Abatement Continues In Bay Area As West Nile Cases In US ON Rise

BRENTWOOD, CA - AUGUST 23: Technicians with the Contra Costa County Mosquito and Vector Control District drive a truck through a neighborhood fogging with Pyrocide 7396 insecticide on August 23, 2012 in Brentwood, California. In the wake of the largest outbreak of the West Nile Virus in the U.S. history, the Contra Costa County Mosquito and Vector Control is fogging areas of the county that have seen a spike in numbers of mosquitoes carrying the West Nile Virus. More than 1,100 people in the Unites States have been infected with West Nile and 41 people have died. (Photo by Justin Sullivan/Getty Images)