The District maintains a multifaceted surveillance program for arboviruses, including West Nile virus (WNV), St. Louis encephalitis virus (SLEV) and western equine encephalitis virus (WEEV). Using both active (mosquito trapping) and passive (bird and human disease reports) monitoring techniques, the District detects and quantifies the intensitiy of virus transmission in the region. With this information, the District can predict areas and times of elevated disease risk and direct critical vector control interventions to effectively protect human health.
Below are the different types of adult mosquito surveillance traps used by the District:
Gravid Trap: Gravid traps use nutrient rich water to attract female mosquitoes that are looking to lay eggs.
BG Sentinel Trap: BG traps use both CO2 and a scented lure to attract adult mosquitoes
Encephalitis Vector Survey Trap: These traps use CO2 and light to attract adult mosquitoes.
Autocidal Gavid Ovitrap: This trap is deployed to detect invasive Aedes adult mosquitoes that are looking for a place to lay their eggs.
Larval Mosquito Surveillance
In addition to our adult mosquito surveillance program, our vector control technicians conduct daily larval surveillance to monitor mosquito density and diversity. This is done by inspecting over 20,000 known sources of mosquito production in both Marin and Sonoma counties. These areas are checked on a regular basis and treated when necessary. They include but are not limited to ditches, catch basins, backyard ponds and creeks.
Checking for mosquito larvae in the Laguna de Santa Rosa.
Website Accesibilty Policy Marin/Sonoma Mosquito and Vector Control District
Marin/Sonoma Mosquito and Vector Control District is fully committed to providing accessible facilities, elements and
channels of communication to all members of the public. As part of this commitment, Marin/Sonoma Mosquito and Vector Control District
has a policy of providing an accessible website compatible with the Web Content Accessibility Guidelines (WCAG 2.1) and
commercial screen reading software. All features of the website are coded to allow individuals with vision and
other impairments to understand and use the website to the same degree as someone without disabilities. We welcome
feedback and can often resolve issues in a timely manner if they arise.
If you need any special assistance or accommodations
Marin/Sonoma Mosquito and Vector Control District has designated a compliance officer for website disability-related accommodations.
The compliance officer has received training in website accessibility and updates the site in accordance with those best
practices. Contact our accessibility officer to report an issue.
Compliance Procedures and Reports
In addition to testing with users with a wide range of disabilities and coding our website to WCAG standards,
Marin/Sonoma Mosquito and Vector Control District regularly scans its website to ensure ongoing compliance, and makes timely
changes to any inaccessible changes, if any are found. In our ongoing commitment to transparency, we make the
last three months' reports available to the public.
August 2021 Website Accessibility Compliance Report
July 2021 Website Accessibility Compliance Report
June 2021 Website Accessibility Compliance Report
Linked Documents and Third Parties
Please note that this site may link out to third-party websites, such as state or federal agencies, that do
not have accessible content. This site may also include documents provided by third parties included in our
agenda packets, for example. While we cannot control the accessibility of content provided by third parties,
we are happy to assist any member of the public with reading and accessing content on our site.
