Below is a map of confirmed positive samples of West Nile virus activity in Sacramento and Yolo counties to date. For a list view of this data, please see the West Nile Virus Activity page.

Click the markers to view details.

Markers are color coded by type:

• Blue: Dead Bird
• Green: Mosquito Samples
• Red: Sentinel Animal

Locations on map are randomized within 500 feet of true locations.