yellow fever mosquito confirmed in Contra Costa County, SoCal invasion

The yellow fever mosquito, scientifically known as Aedes aegypti, has been confirmed in Contra Costa County, California, as reported by the Mosquito and Vector Control District. This invasive species is known for its aggressive daytime biting behavior, primarily targeting the legs and ankles. The district discovered the first signs of this mosquito earlier in the week, prompting immediate action including door-to-door inspections and treatments in the affected area. Steve Schutz, the district's scientific programs director, emphasized the significant nuisance and health risks posed by these mosquitoes, which can transmit diseases such as dengue fever and Zika virus. The presence of these mosquitoes has already altered the quality of life in regions where they have established populations, particularly in Southern and Central California. In addition to the yellow fever mosquito discovery, the district reported that another group of mosquitoes trapped in Martinez tested positive for West Nile virus. This highlights the ongoing public health concerns related to mosquito-borne diseases in the region. The recent death of an East County man from West Nile virus further underscores the urgency of addressing mosquito populations. The Mosquito and Vector Control District is actively seeking public assistance in reporting sightings of the yellow fever mosquito. Residents are encouraged to contact the district for mosquito services, as community involvement is crucial in efforts to control and eradicate this invasive species.