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2013 West Nile Virus Activity
The Sacramento-Yolo Mosquito and Vector Control District's ongoing surveillance program has detected West Nile virus activity in Sacramento or Yolo counties. Archived data is available for 2007 activity, 2008, 2009, 2010, 2011, and 2012.
Download a PDF of the West Nile Risk Assessment for 6/17/2013
West Nile virus positives total for 2013
| Sacramento
County | Yolo
County | Total |
|---|
| Humans | 1 | 0 | 1 |
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| Horses | 0 | 0 | 0 |
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| Sentinel Animals | 0 | 0 | 0 |
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| Mosquito Samples | 8 | 0 | 8 |
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| Dead Birds | 3 | 1 | 4 |
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Click here for a map of these locations
Below you will find the breakdown of West Nile virus activity
Humans tested positive for West Nile virus:
| Reported | County |
| 05/30/2013 | Sacramento |
Horses tested positive for West Nile virus:
Sentinel animals tested positive for West Nile virus:
Mosquito Samples tested positive for West Nile virus:
| Collected | County | City | Zip Code | Species (# of Mosquitoes in Trap) |
| 06/04/2013 | Sacramento | Carmichael | 95608 | Cx pipiens (44) |
| 06/04/2013 | Sacramento | Carmichael | 95608 | Cx pipiens (11) |
| 06/04/2013 | Sacramento | Sacramento | 95822 | Cx tarsalis (3) |
| 06/04/2013 | Sacramento | Sacramento | 95822 | Cx tarsalis (1) |
| 06/07/2013 | Sacramento | Sacramento | 95815 | Cx pipiens (28) |
| 06/07/2013 | Sacramento | Sacramento | 95831 | Cx pipiens (15) |
| 06/07/2013 | Sacramento | Sacramento | 95831 | Cx pipiens (29) |
| 06/11/2013 | Sacramento | Isleton | 95641 | Cx pipiens (29) |
Dead birds tested positive for West Nile virus:
| Collected | County | City | Zip Code | Species |
| 05/31/2013 | Sacramento | Wilton | 95693 | American Crow #13-1076 | | 05/31/2013 | Sacramento | Sacramento | 95815 | American Crow #13-1082 | | 06/05/2013 | Sacramento | Sacramento | 95823 | American Crow #13-1167 | | 06/11/2013 | Yolo | Davis | 95616 | Western Scrub-Jay #13-1322 |
If you see a bird, particularly a crow or magpie, lacking signs of trauma that has been dead for less than 24 hours, please call 1-877-WNV-BIRD (1-877-968-2473) or report it online here. Crows and magpies are particularly susceptible to the disease, so they make excellent early warning sentinels for virus activity in our area.
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