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Fogging to Suppress West Nile Virus Mosquitoes Scheduled in Areas of Santa Clara, Sunnyvale, and Cupertino
The Santa Clara Vector Control District to Conduct the Third 2014 Fogging Campaign on June 4
Posted Date: 5/30/2014

SAN JOSÉ, CALIF. –The Santa Clara County Vector Control District (SCCVCD) confirmed on May 29 that adult mosquitoes collected from the 95051, 94096, 94087, and 95014 ZIP code areas tested positive for West Nile virus (WNV). The detection of mosquitoes infected with WNV has prompted the scheduling of a mosquito fogging treatment in the surrounding area, in an effort to prevent human cases of WNV. Weather permitting; the ground fogging is scheduled for Wednesday, June 4 at 11:00 pm, and is planned to last for several hours.

Acting District Manager Russ Parman notes that “This is the third indication of WNV infected mosquitoes in Santa Clara County this year, and the June 4th fogging date matches the prior 2008 first-fogging record.” The fogging area is generally bordered by Maria Ln., Ponderosa Ave., Lupine Dr., Lily Ave., and Cabrillo Ave. on the north; N. Wolfe Rd., Hummingbird Ln., Grackle Way, and Kingfisher Way on the west, Townsend Av., Calabazas Blvd., Alpine Ave., Peppertree Ln., and Pruneridge Ave. on the south. A live map can be viewed at

Information packets will be distributed in the fogging area beginning on Saturday May 31, notifying residents about the fogging operation. As an added convenience, on Tuesday and Wednesday, staff from the Santa Clara County Vector Control District and the Public Health Department will be available during extended hours from 7:30 am to 7 pm via a dedicated phone line/voicemail (800-314-2427) to answer questions and provide information.

Transmitted by mosquito bites, WNV causes mild to severe flu-like symptoms such as fever, headache, body aches, and, in severe cases, significant neurological damage or even death. The elderly and those with compromised immune systems are most susceptible. Since the arrival of WNV to California in 2003, 4004 people across the State have contracted the disease; 145 of those cases were fatal.

Scientific / Technical Services Manager Dr. Noor Tietze stated that “this unusually intense WNV season underscores the need for residents to protect themselves from mosquito bites, and to eliminate standing water on their properties.”

Some practical measures against mosquito bites are:

At home:

  • DRAIN or DUMP standing water weekly since this is where mosquitoes lay eggs. Check items such as flowerpots and planter bases, toys, cans, leaky water faucets and sprinklers, rain gutters, buckets, pools, ponds, and old tires.
  • Clean and scrub bird baths and pet-watering dishes weekly.
  • Make sure your DOORS and windows have tight-fitting screens


  • Limit outdoor activities during DUSK & DAWN to prevent mosquito bites. Those are the times when the mosquitoes that transmit WNV are most active.

If you need to go outside in an area where mosquitoes are active:

  • DRESS in long sleeve shirts and long pants, preferably of light colors.
  • Apply insect repellent following label instructions.

Contact the Vector Control District if you are being bothered by mosquitoes or know of a potential mosquito-breeding source.

For free assistance on mosquito control, WNV, or other vectors, residents can contact the District office by calling (408) 918-4770 or fill out a service request online at