Currently, West Nile virus positive mosquito samples and positive dead birds are not being detected. As mosquito season continues to wind down and the weather becomes cooler we expect to see lest West Nile virus activity in the county.
| Indicators | Placer County* | CA* |
|---|---|---|
| Human Cases/Fatal Cases | 2/0 | 184/8 |
| Dead Birds | 2 | 341 |
| Mosquito Samples | 58 | 2,628 |
| Sentinel Chickens | 0 | 143 |
| Horses | 0 | 20 |
*Placer County results as of 12/18/2020; CA results as of 12/18/2020.