Negative Results for Mosquitos Tested for West Nile Virus

Rebecca Zito at the City of San Mateo, has been handling community concern over the mosquito fogging. Thanks, Rebecca!

After an initial communications fumble by the Abatement District , the District and City have been very effective letting us all know what;s been happening. Along with the Nixle update many of us received Monday, some HANCSM members and others received this follow up from her:


We wanted to provide an update to our community partners about West Nile Virus testing and treatment as a follow-up from June 19th and 20th. The treatment was carried out overnight on June 19th in an area roughly bounded by Fourth Avenue, Poplar Avenue, El Camino Real, and Highway 101 after mosquitoes tested positive for West Nile Virus in this area. Following the treatment, the San Mateo County Mosquito and Vector Control District conducted additional testing over the weekend and notified the City that the results are negative. The District does not plan to further treat this area. As a precautionary measure, the District will continue to test mosquitoes for West Nile Virus throughout the summer. The District will provide advance warning if further treatment is needed, which the City will send to community members through social media, our website and a community alert. More information about mosquito abatement and prevention measures has been posted to the City’s website at

This announcement has been coordinated with the San Mateo Police Department to ensure that all segments of the community are receiving important announcements and news through community alerts. Please forward this information along to your own communication networks. Thank you for your help in sharing this information and for being part of our communication channels.

Thank you,

Rebecca Zito, City of San Mateo
City Manager’s Office
330 W. 20th Avenue
San Mateo, CA 94403
Phone: (650) 522-7005

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