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Fogging to Suppress West Nile Virus Mosquitoes Scheduled in San José

SAN JOSÉ, CALIF.  - The Santa Clara County Vector Control District (SCCVCD) confirmed on July 5 that adult mosquitoes collected from the 95123 and 95136 (partial) ZIP code areas of San José 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 Thursday, July 11, at 11:00 p.m., and is planned to last for several hours.
“While we're seeing a slow start to the WNV season this year, the detection of virus in mosquitoes represents a direct risk of human infection,” said Acting District Manager Russ Parman. “Control of infected adult mosquitoes is an essential component of preventing human cases of WNV and other mosquito-borne encephalitis. 
The fogging area is generally bordered by Chynoweth Ave., Tiffin Dr., War Wagon Dr. and Monterey Rd. on the north; Snell Ave., Entrada Cedros, and Blossom Ave. on the west; Cottle Rd. on the east; and Santa Teresa Blvd., Suisse Dr., Los Pinos Wy., and Spode Wy. on the south.  A live map can be viewed at
Information packets will be distributed in the fogging area beginning on July 10, notifying residents about the fogging operation.  As an added convenience, on July 10 and July 11, staff from the Santa Clara County Vector Control District and the Public Health Department will be available during extended hours from 7:30 a.m. to 7 p.m. at 408-918-4770 or 800-675-1155 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 WNV arrived in California in 2003, 3,625 people across the State have contracted the disease, and 130 of those cases were fatal.
 “It is important for residents to take precautions to avoid being bitten by mosquitoes whenever they are outdoors, especially during dusk and dawn,” said Scientific / Technical Services Director Dr. Noor Tietze. People can also help by draining standing water and reporting other sources of mosquito breeding such as neglected swimming pools.”
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.
·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 at dusk or dawn, or are 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.
Always contact the Vector Control District if you are being bothered by mosquitoes or know of a potential mosquito-breeding source.
Dead birds may indicate the presence of WNV.  The District has recently completed its new laboratory, which allows in-house testing for WNV and other vector-borne diseases throughout the year.  The District asks Santa Clara County residents to report crows, jays, or birds of prey that have been dead for less than 48 hours and do not appear to have died because of an injury.  People who find those birds should call the State of California WNV hotline at 877-WNV-BIRD (2473) or at
Residents can visit the District’s website at to view a map of the fogging zone, read the latest alerts about WNV activity in the County, and request advice or services. 
For free assistance on mosquito control, WNV, or other vectors, residents can contact the District office by calling (408) 918-4770/(800) 675-1155 or fill out a service request online at
Media Contact: Russ Parman, 408-593-6176 English; Noor Tietze, 408-210-5773 English; Victor Romano, 408-593-6193 English; José Colomé, 408-210-5774 English and Spanish
Posted: July 9, 2013