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Fogging to Suppress West Nile Virus Mosquitoes was completed at approximately 2:20 a.m. Friday, May 23, 2014.

Published on: 5/27/2014 3:04 PM
Post-fogging mosquito samples will be collected over the weekend and analyzed the following Tuesday to assess effectiveness of the fogging and test for WNV. If there is no virus found, this will complete the project and there will be no further foggings.
If virus is found in the post-fogging samples, then another fogging will occur, possibly as early as 11:00pm on Wednesday, May 28.
The fogging area is generally bordered by Rosedale Dr., Moorpark Av. and Fruitdale Av on the north, Phelps Av. on the west, Leigh Av. on the east, and East Campbell Av. on the south.  A live map can be viewed at
The Santa Clara County Vector Control District (SCCVCD) confirmed on May 16, 2014 that adult mosquitoes collected from Campbell and San Jose tested positive for West Nile virus (WNV). The detection of mosquitoes infected with WNV prompted the scheduling of a mosquito fogging treatment in the surrounding area to prevent human cases of WNV.
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, 4,004 people across the State have contracted the disease.