Laboratory Staff

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Laboratory staff have a variety of responsibilities. Staff conduct in-house testing of mosquitoes and ticks, as well as collect ticks from throughout San Mateo County. Residents or operations staff may submit insect samples to the District for entomology and vector ecology staff to identify. Laboratory staff coordinate with other districts and the California Department of State Health Services to evaluate the distribution of vectors and vector-borne diseases.

Angie Nakano

Position: Laboratory Director
Phone: 650-344-8592

Angie began her career in vector control as a seasonal laboratory assistant with the District in 2005. From 2006-2012 she was a Vector Ecologist at…

Arielle Crews

Position: Vector Ecologist

Arielle received her B.S. in Wildlife Biology from the University of California, Davis, and her M.S. in Microbiology from San Francisco State…

Tara Roth

Position: Vector Ecologist

Tara Roth has a B.S. in Evolution, Ecology and Biodiversity from the University of California Davis, an M.S. in Ecology and Systematics from San…

Theresa Shelton

Position: Laboratory Technician

Theresa has been with the District since 2008. She works with the laboratory on surveillance of invasive Aedes aegypti mosquitoes, West Nile Virus…

Sean Sasabe

Position: Laboratory Assistant

Sean joined the District as a seasonal Laboratory Assistant in 2024.

Alexander Esquivel

Position: Laboratory Assistant

Alex joined the District as a seasonal Laboratory Assistant in 2025.

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