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Tick Season in San Mateo County
Last month, the District issued a reminder to San Mateo County residents about the risk of tick-borne illness in our county. Results from the District’s 2016/2017 tick-borne disease surveillance program indicate that up to 3% of ticks collected in San Mateo County are infected with pathogens capable of causing illness in humans. Although this doesn't indicate an elevated level of risk, we recommend a few basic precautions when engaging in outdoor activities during tick season: dress defensively, use repellent, stay on the trail, and check for ticks after time outdoors.

If you do find a tick, don't panic! Prompt removal of attached ticks can reduce the chance of infection with a tick-borne disease. To remove a tick, use tweezers to grasp the tick close to the skin and pull gently but firmly. Don't jerk or twist the tick. Never crush, burn, or smother a tick. After removal, wash your hands and the bite area with soap and water. Consult a health professional if unable to completely remove a tick, or if a rash or fever develops after exposure to a tick. 

For more information on ticks in San Mateo County, contact the San Mateo Mosquito and Vector Control District at (650) 344-8592 or visit
Stanford Students Help Collect Ticks

On December 2nd, District laboratory staff helped lead a field trip at Wunderlich County Park for Stanford students learning about tick borne diseases. The class was titled Parasites and Pestilence and was led by professor and District Trustee Dr. Scott Smith. Students were given tick flags and instructed on basic tick biology as well as how to collect ticks and sort by sex and species. A total of 140 ticks were collected by the Stanford students over a total of 1.7 miles of trails. District lab staff returned on December 5th to collect an additional 101 ticks for a grand total of 241 ticks collected over 2.45 miles of trails. Read more.


Holiday Office Hours

The District office will be closed Jan. 15th in observance of Martin Luther King, Jr. Day. View the District calendar.

No New WNV Detections

There were been no new West Nile virus detections in December. At the end of 2017, there had been one WNV detection in San Mateo County. Read more.

No New Invasive Aedes Detections

There were no invasive Aedes mosquito detections in 2017. The most recent invasive Aedes detection in San Mateo County was in 2015. Read more.

Our Work by the Numbers

December is usually a slow month at the District, and last month was no exception. Our technicians responded to 74 service requests during December, including 31 rodent inspections, 11 yellow jacket nests, and 9 mosquito reports.  They also took the opportunity to catch up on other tasks like data entry, calibrating equipment, and completing required continuing education training. Read more about our work last month.
Download Finance Reports
Download Board Meeting Materials
Request a Technician Visit
Save the Date! The District Open House is Scheduled for April 26th
The District's annual Mosquito Week Open House will be held at the District office in Burlingame. We'll have refreshments, prizes, children’s activities, tours, demonstrations, educational displays, and a chance to meet the vector control technicians and other staff who make San Mateo County a safer and healthier place to work, live, and visit. Please feel free to share this invitation with your neighbors, friends, family, and coworkers – everyone is welcome!
Laboratory Updates
During the cooler months, when there are fewer mosquitoes flying around and not as many service requests, District staff take the opportunity to plan and prepare for the upcoming West Nile virus season. One off-season preparation was carbon-dioxide trap construction. Read more laboratory updates.
Copyright © 2018 San Mateo County Mosquito and Vector Control District, All rights reserved.

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