We provide West Nile virus (WNV) surveillance maps showing the following:
- Tick Reports 2023
- WNV Human Cases 2023
- Mosquito Traps Positive for WNV 2023
- Bird Death Reports 2023
Reading the Maps
Red circles indicate an area with a positive test for WNV.
Locations may have had more than one positive result on multiple dates. To access all positive historical data, click on the red circle and scroll through.
A human figure symbol indicates an area that has reported a positive human case of WNV.
Tick Reports 2023
View larger map
WNV Human Cases 2023
Mosquito Traps Positive (in red) for WNV 2023
Bird Death Reports 2023