The County of Santa Clara Vector Control District has detected West Nile virus-positive mosquitoes in parts of San José, targeting ZIP codes 95116 and 95133 for immediate attention. Plans for truck-mounted spraying have been set for Thursday, starting at approximately 10 p.m., to combat the rising adult mosquito population that poses a pressing public health concern, the County of Santa Clara reported.

This vector control effort is critical, particularly as summer creates an environment ripe for mosquito breeding. The District relies on integrated pest management strategies to preemptively halt mosquitoes in their immature stages. However, detecting West Nile virus-inflicted mosquitoes necessitates urgent adult-mosquito-control measures to reduce potential human infection risks.

Residents within the treatment zones have received notifications through various channels, including mailed postcards and emails to registered voters in the precinct. Social media platforms and the District's treatment alert subscriptions serve as additional avenues for public awareness. Those seeking further information or having specific concerns can contact the agency's West Nile Virus Hotline at (408) 282-3114 or via email at [email protected].

Health officials underscore that the truck-mounted treatment process, which involves pesticides approved by the U.S. Environmental Protection Agency, carries minimal risk to humans, pets, and the environment. The quick breakdown of these pesticides in the presence of sunlight coupled with ultra-low volume application techniques minimizes exposure. Nevertheless, taking extra precautions, such as staying indoors during the treatment period, is always an option for the concerned public.

The SJ community has also been reminded to inspect for standing water, eliminate breeding grounds for mosquitoes, and adopt protective measures during peak mosquito activity times. For those needing assistance in controlling mosquito activity or identifying potential breeding sources, the County's Vector Control District remains in service, with the ability to contact them for free assistance with mosquito control.

Public vigilance and cooperation are vital in preventing the spread and impact of the West Nile virus, which has inflicted considerable health consequences since it entered California. According to a county publication, West Nile virus has led to over 8,000 reported human cases and nearly 400 deaths in the state since 2003, with 18 fatalities linked to WNV in 2023 alone. While most cases remain asymptomatic, some lead to severe neurological effects and can be life-threatening, with heightened risks prevalent among the elderly and individuals with chronic health conditions.