From the Sacramento Bee
July 12, 2018
West Nile virus activity is surging in Sacramento County, with the region now leading the state, officials say.
There is also greater and more localized activity this year compared to last year, said Luz Robles, public information officer for the Sacramento-Yolo Mosquito and Vector Control District.
“Residents need to be vigilant, especially as we enter the hottest of the hottest weeks of the year,” Robles said, explaining that heat advances the life cycles of mosquitoes.
West Nile virus activity is defined by the number of dead birds and mosquito samples testing positive for the virus, Robles said. Sentinel chickens and horses testing positive would also be taken into consideration, but there have not been cases of either in California so far this year.