As the warm season peaks, West Nile virus-positive mosquitoes have been confirmed in San José and parts of unincorporated Santa Clara County, specifically within the ZIP codes 95111, 95112, 95128, and 95136. To curb the potential rise in human infections, the County of Santa Clara Vector Control District has scheduled a truck-mounted adult mosquito control treatment for Thursday, beginning around 10 p.m. This operation, weather permitting, is to last two to four hours, targeting adult mosquito populations that are responsible for transmitting the virus.
The detection of mosquitoes carrying the West Nile virus prompts an immediate reaction from the vector district, as any delay could significantly increase the risk of public health concerns, potentially leading to severe illness or death. In a statement from the County of Santa Clara, the district explained that the treatments are crucial for decreasing the mosquito population and, in turn, the risk of human infection. Such measures are common during the summer and early fall when mosquito activity typically intensifies due to favorable warm weather conditions.
Residents in the affected areas have been notified through multiple channels, including mailed postcards, the AlertSCC system, emails to registered voters within specific precincts, and the district's social media platforms. To further engage the community and address concerns, the Vector Control staff operate a dedicated West Nile Virus Hotline from 7:30 a.m. to 3:30 p.m., Monday through Friday. Questions and concerns can also be directed to their email at [email protected].
While vital, the upcoming mosquito control measures do not call for relocation during the treatment period. The district assures minimal risks to people, pets, animals, and the environment when the pesticides, approved by the U.S. Environmental Protection Agency, are professionally applied. Extra precautions, such as staying indoors and keeping windows and doors closed during the process, are optional but can be taken by those seeking additional reassurance. The applied pesticides are claimed to deteriorate rapidly when exposed to sunlight. They are administrated in ultra-low volumes, making them unlikely to come into contact with harmful chemical levels.
West Nile virus has been a significant health concern in California since it arrived in 2003, with over 8,000 reported cases and nearly 400 fatalities. The virus often presents as asymptomatic but can escalate to more severe conditions like neurological damage and even death, especially among individuals with chronic health conditions and the elderly. By draining standing water on their property, wearing protective clothing, and utilizing approved insect repellents, residents can play an active role in preventing the spread of this virus. Those experiencing issues with mosquitoes or suspect stagnant water sources can request assistance from the Santa Clara Vector Control District through their office number or by submitting an online service request.
