West Nile virus has been discovered in certain areas of Palo Alto and Stanford, causing alarm among residents and prompting the Santa Clara County Vector Control District to initiate a mosquito control treatment on Thursday, July 27 starting at 10 p.m., as reported by Palo Alto Online. The operation will last approximately four hours.
According to a Facebook post by the County of Santa Clara Vector Control District, the affected areas are within the zip codes 94301, 94304, 94305, and 94306. A press release from the district offers further information on the detection and treatment plan.
Residents in the affected areas do not need to relocate during the treatment, but those who wish to minimize exposure for themselves, their families, or their pets are advised to close windows and remain inside during the spraying period, as per the district's advisory.
All of the treatment materials being used, including the product Merus 2.0, are approved by the Environmental Protection Agency for use in public areas and are widely used by vector control agencies throughout California, the district assured. However, the active ingredient in Merus 2.0, pyrethrins, is known to be toxic to aquatic organisms and bees exposed to treatment on blooming crops or weeds.
West Nile virus poses a significant public health concern, particularly for people with compromised immune systems and the elderly. According to the California Department of Public Health, it is the most common and serious vector-borne disease in the state, causing more than 7,000 human infections and nearly 400 deaths since its detection in California back in 2003.
To protect themselves and their community, residents are encouraged to take a few essential steps such as inspecting property for standing water on a weekly basis, draining or overturning objects that can hold water, cleaning bird baths and pet bowls, and properly screening rain barrels and irrigation drains to prevent mosquito access. Limiting outdoor activities during dusk and dawn, dressing in long-sleeve shirts and long pants in light colors, and applying insect repellent can all help to reduce exposure to mosquitoes and therefore lower the risk of West Nile virus infection.
