WEST NILE VIRUS ACTIVITY

WEST NILE VIRUS ACTIVITY

The Sacramento-Yolo Mosquito and Vector Control District’s ongoing surveillance program has detected West Nile virus activity in Sacramento and Yolo counties, data is shown below.

For Human and Equine cases, please visit westnile.ca.gov.






West Nile virus positives total for 2022
Sacramento County Yolo County Total
Sentinel Animals 5 3 8
Mosquito Samples 40 64 104
Dead Birds 37 24 61
Positive Birds for 2022
Date Number County Zip Species
05/27/22 #22-470 Yolo 95616 American Crow
06/02/22 #22-521 Sacramento 95821 American Crow
06/08/22 #22-575 Sacramento 95608 Yellow-billed Magpie
06/14/22 #22-651 Sacramento 95827 Yellow-billed Magpie
06/15/22 #22-661 Sacramento 95608 California Scrub-Jay
06/28/22 #22-746 Sacramento 95821 American Crow
06/29/22 #22-756 Sacramento 95821 California Scrub-Jay
07/07/22 #22-796 Sacramento 95621 California Scrub-Jay
07/09/22 #22-807 Sacramento 95821 Unknown-hawk
07/11/22 #22-813 Sacramento 95821 Unknown-hawk
07/12/22 #22-820 Yolo 95618 American Crow
07/14/22 #22-840 Sacramento 95670 Cooper's Hawk
07/14/22 #22-868 Sacramento 95626 American Crow
07/14/22 #22-876 Sacramento 95608 California Scrub-Jay
07/15/22 #22-890 Sacramento 95864 White-breasted Nuthatch
07/18/22 #22-892 Sacramento 95827 California Scrub-Jay
07/19/22 #22-914 Sacramento 95827 American Crow
07/19/22 #22-916 Sacramento 95610 California Scrub-Jay
07/21/22 #22-925 Sacramento 95864 American Crow
07/25/22 #22-951 Sacramento 95821 White-breasted Nuthatch
07/26/22 #22-952 Sacramento 95608 Yellow-billed Magpie
07/30/22 #22-996 Yolo 95616 American Crow
07/30/22 #22-993 Yolo 95618 American Crow
08/01/22 #22-991 Sacramento 95608 California Scrub-Jay
08/05/22 #22-1052 Sacramento 95610 Yellow-billed Magpie
08/07/22 #22-1055 Yolo 95616 American Crow
08/10/22 #22-1092 Sacramento 95821 Yellow-billed Magpie
08/15/22 #22-1109 Sacramento 95814 American Crow
08/15/22 #22-1116 Yolo 95616 American Crow
08/18/22 #22-1165 Sacramento 95673 Yellow-billed Magpie
08/22/22 #22-1174 Yolo 95616 Unknown - Crow or Raven
08/22/22 #22-1184 Sacramento 95621 Yellow-billed Magpie
08/23/22 #22-1189 Yolo 95616 American Crow
08/24/22 #22-1194 Sacramento 95608 California Scrub-Jay
08/25/22 #22-1209 Yolo 95618 California Scrub-Jay
08/26/22 #22-1226 Yolo 95616 Black Phoebe
08/27/22 #22-1222 Yolo 95616 American Crow
08/28/22 #22-1225 Yolo 95616 American Crow
08/29/22 #22-1228 Sacramento 95843 California Scrub-Jay
08/30/22 #22-1246 Sacramento 95864 American Crow
08/30/22 #22-1248 Yolo 95618 American Crow
09/01/22 #22-1266 Sacramento 95670 American Crow
09/06/22 #22-1274 Sacramento 95630 American Crow
09/06/22 #22-1275 Sacramento 95628 Yellow-billed Magpie
09/06/22 #22-1276 Yolo 95618 American Crow
09/06/22 #22-1278 Sacramento 95821 House Finch
09/06/22 #22-1279 Yolo 95616 American Crow
09/07/22 #22-1288 Yolo 95616 American Crow
09/07/22 #22-1294 Yolo 95616 American Crow
09/09/22 #22-1300 Yolo 95691 American Crow
09/11/22 #22-1311 Yolo 95618 American Crow
09/12/22 #22-1302 Yolo 95691 American Crow
09/12/22 #22-1304 Yolo 95616 American Crow
09/12/22 #22-1309 Yolo 95616 American Crow
09/12/22 #22-1312 Sacramento 95655 California Quail
09/12/22 #22-1331 Sacramento 95608 Yellow-billed Magpie
09/14/22 #22-1345 Yolo 95616 California Scrub-Jay
09/18/22 #22-1366 Sacramento 95814 American Crow
09/19/22 #22-1371 Yolo 95616 Common Raven
09/19/22 #22-1375 Sacramento 95608 American Crow
09/21/22 #22-1388 Sacramento 95660 American Crow
Positive Mosquito Samples for 2022
Date County Zip Species
06/01/22 Sacramento 95660 22 Culex pipiens
06/24/22 Sacramento 95841 33 Culex pipiens
06/24/22 Sacramento 95841 20 Culex pipiens
06/24/22 Sacramento 95826 47 Culex pipiens
07/01/22 Sacramento 95608 8 Culex pipiens
07/06/22 Sacramento 95821 15 Culex tarsalis
07/08/22 Yolo 95695 50 Culex pipiens
07/08/22 Yolo 95695 46 Culex pipiens
07/12/22 Yolo 95618 50 Culex tarsalis
07/15/22 Yolo 95695 3 Culex pipiens
07/22/22 Yolo 95695 7 Culex tarsalis
07/22/22 Yolo 95695 4 Culex pipiens
07/22/22 Sacramento 95821 5 Culex tarsalis
07/22/22 Sacramento 95621 5 Culex tarsalis
07/22/22 Sacramento 95608 6 Culex tarsalis
07/26/22 Yolo 95698 30 Culex tarsalis
07/26/22 Yolo 95695 50 Culex tarsalis
07/29/22 Yolo 95695 9 Culex pipiens
07/29/22 Sacramento 95832 2 Culex pipiens
07/29/22 Sacramento 95693 1 Culex pipiens
08/02/22 Yolo 95616 17 Culex tarsalis
08/02/22 Sacramento 95864 5 Culex tarsalis
08/02/22 Sacramento 95835 42 Culex pipiens
08/05/22 Yolo 95776 50 Culex tarsalis
08/05/22 Yolo 95776 50 Culex tarsalis
08/05/22 Yolo 95776 41 Culex pipiens
08/05/22 Yolo 95695 21 Culex tarsalis
08/05/22 Yolo 95695 18 Culex tarsalis
08/09/22 Yolo 95937 50 Culex tarsalis
08/09/22 Yolo 95776 50 Culex tarsalis
08/09/22 Yolo 95776 50 Culex tarsalis
08/09/22 Yolo 95695 50 Culex tarsalis
08/09/22 Yolo 95616 50 Culex tarsalis
08/09/22 Yolo 95616 15 Culex tarsalis
08/09/22 Yolo 95616 13 Culex tarsalis
08/09/22 Sacramento 95864 2 Culex pipiens
08/12/22 Yolo 95776 12 Culex pipiens
08/12/22 Yolo 95695 5 Culex pipiens
08/12/22 Yolo 95695 3 Culex tarsalis
08/12/22 Yolo 95695 14 Culex tarsalis
08/12/22 Sacramento 95670 7 Culex pipiens
08/12/22 Sacramento 95632 14 Culex pipiens
08/16/22 Yolo 95937 50 Culex tarsalis
08/16/22 Yolo 95698 4 Culex pipiens
08/16/22 Yolo 95695 50 Culex tarsalis
08/16/22 Yolo 95645 50 Culex tarsalis
08/16/22 Yolo 95645 50 Culex tarsalis
08/16/22 Yolo 95645 1 Culex pipiens
08/16/22 Yolo 95618 50 Culex tarsalis
08/16/22 Yolo 95618 50 Culex tarsalis
08/16/22 Yolo 95616 7 Culex pipiens
08/16/22 Yolo 95616 40 Culex tarsalis
08/16/22 Yolo 95616 25 Culex tarsalis
08/16/22 Sacramento 95838 12 Culex tarsalis
08/19/22 Yolo 95776 32 Culex tarsalis
08/19/22 Sacramento 95757 26 Culex tarsalis
08/19/22 Sacramento 95670 11 Culex pipiens
08/23/22 Yolo 95776 50 Culex tarsalis
08/23/22 Yolo 95776 50 Culex tarsalis
08/23/22 Yolo 95776 50 Culex tarsalis
08/23/22 Yolo 95698 31 Culex tarsalis
08/23/22 Yolo 95695 50 Culex tarsalis
08/23/22 Yolo 95618 50 Culex tarsalis
08/23/22 Yolo 95616 50 Culex tarsalis
08/23/22 Yolo 95616 22 Culex tarsalis
08/26/22 Yolo 95695 16 Culex tarsalis
08/26/22 Sacramento 95641 1 Culex pipiens
08/26/22 Sacramento 95621 50 Culex pipiens
08/30/22 Yolo 95776 50 Culex tarsalis
08/30/22 Yolo 95695 50 Culex tarsalis
08/30/22 Yolo 95695 50 Culex tarsalis
08/30/22 Yolo 95695 50 Culex tarsalis
09/02/22 Yolo 95776 22 Culex tarsalis
09/02/22 Yolo 95694 50 Culex pipiens
09/02/22 Yolo 95694 50 Culex pipiens
09/02/22 Sacramento 95693 50 Culex tarsalis
09/02/22 Sacramento 95693 50 Culex tarsalis
09/02/22 Sacramento 95693 44 Culex pipiens
09/02/22 Sacramento 95621 36 Culex tarsalis
09/02/22 Sacramento 95621 30 Culex pipiens
09/02/22 Sacramento 95610 48 Culex pipiens
09/07/22 Yolo 95776 50 Culex tarsalis
09/07/22 Yolo 95776 50 Culex tarsalis
09/07/22 Yolo 95776 50 Culex tarsalis
09/07/22 Yolo 95695 50 Culex tarsalis
09/07/22 Yolo 95616 15 Culex pipiens
09/07/22 Sacramento 95843 50 Culex tarsalis
09/07/22 Sacramento 95843 16 Culex pipiens
09/07/22 Sacramento 95843 15 Culex tarsalis
09/07/22 Sacramento 95843 10 Culex tarsalis
09/09/22 Yolo 95695 9 Culex pipiens
09/09/22 Yolo 95695 13 Culex pipiens
09/09/22 Sacramento 95757 42 Culex tarsalis
09/09/22 Sacramento 95670 14 Culex pipiens
09/09/22 Sacramento 95632 7 Culex tarsalis
09/13/22 Yolo 95776 50 Culex tarsalis
09/13/22 Yolo 95776 50 Culex tarsalis
09/13/22 Yolo 95616 8 Culex tarsalis
09/13/22 Sacramento 95815 5 Culex pipiens
09/15/22 Sacramento 95632 42 Culex tarsalis
09/16/22 Sacramento 95693 50 Culex tarsalis
09/16/22 Sacramento 95693 43 Culex tarsalis
09/23/22 Sacramento 95641 50 Culex tarsalis
09/23/22 Sacramento 95641 50 Culex tarsalis

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.

WNV IN YOUR AREA?

wnvactivity

MAP OF WNV ACTIVITY

Click here to show confirmed positive samples of West Nile virus activity in Sacramento and Yolo counties to date.