2003
The following mosquitoes were identified in 2003 and 2004 as having at least one West Nile Virus infected mosquito: Culiseta inornata, Ochlerotatus fitchii, Culex tarsalis, Aedes cinereus, Aedes vexans, Culex salinarius, Ochlerotatus dorsalis, Culex pipiens. The number of infected pools is summarized in the linked webpage listed below for each year:
Infected
Mosquitoes During the Summer of 2003
Infected
Mosquitoes During the Summer of 2004
*Note:
Mosquitoes were tested in pools. Each pool contained anywhere from 1 to
50 mosquitoes. It is possible that only one mosquito in a pool was
positive and that would give the test a positive result.

The following chart shows the locations, dates, and species of the pools that tested positive for the West Nile Virus.
