Mosquito Trapping and Disease Reports

The District's 2020 to 2026 local disease surveillance reports are linked below. PDF copies of reports from March 2014 through 2019 are available upon request.

Close-up photo of a mosquito on someone's skin.
February 2020January 2020March 2020April 2020May 2020June 2020July 2020
A vector control technician setting up a mosquito trap.
August 2020September 2020October 2020November 2020December 2020January 2021February 2021
Photo of a western black-legged tick
March 2021April 2021May 2021June 2021July 2021August 2021September 2021October 2021
A person is using a microscope to inspect mosquito specimens on petri dishes in a lab setting.
November 2021December 2021January 2022February 2022March 2022April 2022May 2022June 2022July 2022August 2022September 2022October 2022November 2022December 2022
A technician stands near a tree, observing a mosquito trap hanging from a tree at Lake Los Carneros.
January 2023February 2023March 2023April 2023May 2023June 2023July 2023August 2023
A pile of dead mosquitoes in a petri dish.
September 2023October 2023November 2023December 2023January 2024February 2024March 2024April 2024May 2024June 2024July and August 2024September 2024October 2024November 2024
A vector control technician collecting ticks by dragging a cloth over a shrub
December 2024January 2025February 2025March 2025April 2025May 2025June 2025July 2025August 2025September 2025October 2025November 2025December 2025January and February 2026March 2026April 2026May 2026