2022 Service Requestshe number of service requests this November was near average (129 compared to a five-year average of 131), whereas in December the number of service requests dropped below average (85 compared to a five-year average of 111). The decline was mainly from a lower number of mosquito-related calls and much lower than average number of yellowjacket/wasp requests (three in December 2022 compared to a…
2022 Mosquito SurveillanceThe most frequently collected mosquitoes in December were Culex pipiens and Culiseta incidens. After an unusual rise in the number of Cx. pipiens in late fall, this species fell to below-average trap counts in November and December. No other species of mosquitoes were trapped in December, with the exception of a single Culiseta inornata trapped in Burlingame. Culiseta inornata is a large winter…
West Nile Virus SurveillanceThe District’s West Nile virus surveillance program reports several types of positive West Nile virus results, including dead birds, mosquito samples (“pools”), sentinel chickens, and human cases.
Tick SurveillanceThe District collects ticks from around the County and tests for several tick-borne diseases, including Borrelia burgdorferi, which causes Lyme disease, and Borrelia miyamotoi, which causes a similar, less-common tick-borne disease.
