2014 West Nile Virus Activity Map

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.