In response to the recent findings, the Sacramento-Yolo Mosquito & Vector Control District has increased its surveillance. File photo

SACRAMENTO REGION, CA (MPG) - Further West Nile virus activity (WNV) evidence was detected throughout Sacramento and Yolo counties, as 13 mosquito samples and three dead birds tested positive Aug. 13, the highest number of positive results reported in a single day this year, according to the Sacramento-Yolo Mosquito & Vector Control District.

The mosquito samples and dead birds were collected from different locations; however, most of the West Nile virus activity for Aug. 13 was in Davis and other rural areas in Yolo County.

"Mosquito and West Nile virus season is definitely underway and it's important for residents to be vigilant in preventing mosquitoes from breeding in their backyards," said Sacramento-Yolo Mosquito & Vector Control District District Manager Gary Goodman. "Mosquito control is a collaborative effort, and we encourage everyone to do their part."

In Sacramento County, 17 dead birds and 29 mosquito samples have tested positive for West Nile virus, as of press time. In Yolo County, 16 mosquito samples have tested positive for West Nile virus

Last week, the district's laboratory surveillance program detected an increase in virus activity and overall mosquito populations due to the very warm temperatures of recent days. Hot weather accelerates the mosquito lifecycle and can quickly amplify the virus putting residents at a higher risk.

"While it has been a relatively mild season for WNV so far, we are in the middle of summer and conditions can change quickly," Goodman said. "We expect to see continued activity over the next few weeks. Protecting yourself is key: always apply an effective mosquito repellent when spending time outdoors."

The Centers for Disease Control and Prevention recommends using an insect repellent that contains the active ingredients DEET, Picaridin, IR3535 or the plant-based Oil of Lemon Eucalyptus. 

In response to the recent findings, the Sacramento-Yolo Mosquito & Vector Control District has increased its surveillance and will continue with ground fogging around areas where positive mosquitoes and birds have been found. 

For current information about any treatments planned, visit www.FIGHTtheBITE.net. Residents can also subscribe to receive email notifications for mosquito treatments by zip code.  To sign up, click on the Services icon and go to Spray Notifications on the above website.