This map reflects the cumulative number of dead birds sighted in King County and reported to Public Health - Seattle & King County from January 1, 2007 through December 31, 2007. In 2007, 2,779 dead birds were reported and 125 collected for West Nile virus testing. No birds tested positive for West Nile virus infection in 2007, compared to 6 infected birds in 2006. Public Health asks residents to report dead bird sightings throughout the year. Certain birds may be collected for avian influenza testing at any time of the year, whereas laboratory testing of birds for West Nile virus is performed in summer and fall.

» Open this map in Adobe PDF format

Click here for a summary map of non-human West Nile virus surveillance in King County in 2006. This map shows the location of the six dead birds and one horse with West Nile virus in 2006; these cases all occurred in early October.

• Washington State Department of Health Maps
• U.S. Geological Survey Maps
• Centers for Disease Control & Prevention Maps