http://msmosquito.com/
The Marin/Sonoma Mosquito and Vector Control District is committed to protecting the health and welfare of the communities we serve from mosquitoes and vector-borne disease.
http://www.co.marin.ca.us/depts/hh/news/westnile_marin_task_force_final_english_5-13.pdf
What is Marin County Doing to Fight WNV?
There are two ways to help detect and control
WNV in Marin: Surveillance and Mosquito
Control.
Surveillance
involves testing mosquitoes,
chickens and dead birds for WNV to detect the
virus as early as possible. Humans and horses
that show signs of Encephalitis are also tested.