WEST NILE VIRUS ACTIVITY

2020 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 to date in 2020.

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

West Nile virus positives total for 2020
Sacramento County Yolo County Total
Sentinel Animals 0 0 0
Mosquito Samples 115 77 192
Dead Birds 91 29 120
Positive Birds for 2020
Date Number County Zip Species
05/21/20 #20-403 Sacramento 95608 California Scrub-Jay
06/18/20 #20-658 Sacramento 95628 Yellow-billed Magpie
06/20/20 #20-668 Sacramento 95628 American Crow
06/20/20 #20-669 Sacramento 95628 American Crow
06/20/20 #20-687 Sacramento 95821 Yellow-billed Magpie
06/21/20 #20-670 Sacramento 95820 American Crow
06/23/20 #20-694 Sacramento 95624 California Scrub-Jay
06/30/20 #20-761 Sacramento 95608 House Sparrow
06/30/20 #20-780 Sacramento 95864 California Scrub-Jay
07/03/20 #20-781 Sacramento 95864 California Scrub-Jay
07/06/20 #20-804 Sacramento 95628 California Scrub-Jay
07/07/20 #20-807 Sacramento 95821 California Scrub-Jay
07/11/20 #20-845 Sacramento 95864 California Scrub-Jay
07/11/20 #20-841 Sacramento 95608 Yellow-billed Magpie
07/11/20 #20-842 Sacramento 95608 Yellow-billed Magpie
07/13/20 #20-850 Sacramento 95608 American Crow
07/13/20 #20-852 Sacramento 95608 Northern Mockingbird
07/13/20 #20-857 Sacramento 95819 California Scrub-Jay
07/15/20 #20-922 Sacramento 95608 Yellow-billed Magpie
07/15/20 #20-929 Sacramento 95864 California Scrub-Jay
07/19/20 #20-950 Sacramento 95864 Yellow-billed Magpie
07/19/20 #20-953 Sacramento 95608 California Scrub-Jay
07/21/20 #20-977 Sacramento 95673 Yellow-billed Magpie
07/21/20 #20-990 Sacramento 95838 Yellow-billed Magpie
07/22/20 #20-992 Sacramento 95864 Yellow-billed Magpie
07/22/20 #20-994 Sacramento 95821 Yellow-billed Magpie
07/23/20 #20-1008 Sacramento 95608 Mourning Dove
07/24/20 #20-1046 Sacramento 95608 Yellow-billed Magpie
07/24/20 #20-1026 Sacramento 95821 Yellow-billed Magpie
07/26/20 #20-1019 Sacramento 95864 California Scrub-Jay
07/26/20 #20-1027 Sacramento 95608 American Crow
07/27/20 #20-1032 Sacramento 95827 Yellow-billed Magpie
07/27/20 #20-1040 Sacramento 95821 California Scrub-Jay
07/28/20 #20-1050 Sacramento 95610 Yellow-billed Magpie
07/29/20 #20-1055 Sacramento 95835 American Crow
07/30/20 #20-1069 Yolo 95618 Black-crowned Night-Heron
07/30/20 #20-1077 Sacramento 95843 Cooper's Hawk
07/31/20 #20-1097 Sacramento 95628 House Finch
08/01/20 #20-1091 Sacramento 95624 California Scrub-Jay
08/01/20 #20-1092 Sacramento 95624 California Scrub-Jay
08/02/20 #20-1098 Yolo 95616 California Scrub-Jay
08/02/20 #20-1100 Sacramento 95693 Common Raven
08/03/20 #20-1106 Sacramento 95621 California Scrub-Jay
08/04/20 #20-1120 Sacramento 95610 California Scrub-Jay
08/04/20 #20-1126 Sacramento 95825 California Scrub-Jay
08/05/20 #20-1149 Sacramento 95864 Yellow-billed Magpie
08/05/20 #20-1154 Sacramento 95864 California Scrub-Jay
08/06/20 #20-1162 Sacramento 95608 Mourning Dove
08/07/20 #20-1160 Sacramento 95628 Yellow-billed Magpie
08/09/20 #20-1171 Sacramento 95864 California Scrub-Jay
08/10/20 #20-1173 Yolo 95776 Brewer's Blackbird
08/11/20 #20-1205 Sacramento 95864 Yellow-billed Magpie
08/12/20 #20-1238 Sacramento 95610 California Scrub-Jay
08/12/20 #20-1245 Sacramento 95628 California Scrub-Jay
08/13/20 #20-1247 Sacramento 95841 Yellow-billed Magpie
08/13/20 #20-1264 Sacramento 95864 Yellow-billed Magpie
08/16/20 #20-1290 Sacramento 95670 American Crow
08/17/20 #20-1284 Yolo 95694 California Scrub-Jay
08/17/20 #20-1296 Sacramento 95864 American Crow
08/19/20 #20-1319 Sacramento 95610 Yellow-billed Magpie
08/19/20 #20-1323 Yolo 95616 California Scrub-Jay
08/20/20 #20-1327 Sacramento 95608 Yellow-billed Magpie
08/20/20 #20-1328 Sacramento 95843 American Crow
08/21/20 #20-1333 Sacramento 95621 California Scrub-Jay
08/21/20 #20-1338 Yolo 95616 American Crow
08/21/20 #20-1354 Sacramento 95628 California Towhee
08/23/20 #20-1349 Yolo 95618 House Finch
08/23/20 #20-1356 Sacramento 95864 American Robin
08/24/20 #20-1351 Yolo 95616 American Crow
08/24/20 #20-1359 Sacramento 95608 California Scrub-Jay
08/24/20 #20-1362 Yolo 95616 American Crow
08/24/20 #20-1364 Sacramento 95608 California Scrub-Jay
08/25/20 #20-1366 Sacramento 95864 Yellow-billed Magpie
08/25/20 #20-1373 Sacramento 95821 Yellow-billed Magpie
08/26/20 #20-1381 Yolo 95618 American Crow
08/26/20 #20-1388 Yolo 95618 California Scrub-Jay
08/26/20 #20-1392 Sacramento 95632 House Finch
08/26/20 #20-1399 Sacramento 95757 Northern Mockingbird
08/27/20 #20-1393 Sacramento 95632 House Finch
08/27/20 #20-1398 Yolo 95616 California Scrub-Jay
08/28/20 #20-1427 Yolo 95618 California Scrub-Jay
08/28/20 #20-1416 Sacramento 95660 California Scrub-Jay
08/29/20 #20-1417 Yolo 95616 American Crow
08/31/20 #20-1425 Sacramento 95843 American Crow
08/31/20 #20-1435 Sacramento 95660 California Scrub-Jay
08/31/20 #20-1448 Yolo 95616 Western Bluebird
09/01/20 #20-1450 Sacramento 95819 California Scrub-Jay
09/02/20 #20-1474 Yolo 95695 American Crow
09/03/20 #20-1481 Sacramento 95821 California Scrub-Jay
09/05/20 #20-1492 Yolo 95618 California Scrub-Jay
09/05/20 #20-1489 Sacramento 95821 American Crow
09/07/20 #20-1570 Yolo 95695 Barn Owl
09/08/20 #20-1526 Sacramento 95628 Mourning Dove
09/09/20 #20-1545 Sacramento 95608 Western Bluebird
09/10/20 #20-1568 Sacramento 95673 California Scrub-Jay
09/11/20 #20-1579 Sacramento 95608 American Crow
09/11/20 #20-1585 Yolo 95616 American Crow
09/12/20 #20-1594 Sacramento 95662 Yellow-billed Magpie
09/13/20 #20-1596 Yolo 95618 American Crow
09/14/20 #20-1616 Yolo 95618 American Crow
09/16/20 #20-1648 Sacramento 95821 Yellow-billed Magpie
09/17/20 #20-1652 Yolo 95616 American Crow
09/18/20 #20-1658 Yolo 95616 American Crow
09/19/20 #20-1663 Yolo 95616 American Crow
09/21/20 #20-1673 Sacramento 95626 American Crow
09/22/20 #20-1684 Sacramento 95838 California Scrub-Jay
09/23/20 #20-1715 Sacramento 95829 Western Bluebird
09/25/20 #20-1738 Sacramento 95693 American Crow
09/26/20 #20-1751 Yolo 95616 White-crowned Sparrow
09/28/20 #20-1756 Yolo 95618 California Scrub-Jay
09/30/20 #20-1776 Sacramento 95838 House Finch
10/01/20 #20-1788 Yolo 95618 American Crow
10/04/20 #20-1815 Yolo 95616 American Crow
10/06/20 #20-1828 Sacramento 95864 California Scrub-Jay
10/07/20 #20-1837 Sacramento 95821 Yellow-billed Magpie
10/07/20 #20-1843 Sacramento 95823 California Scrub-Jay
10/09/20 #20-1858 Sacramento 95815 California Scrub-Jay
10/12/20 #20-1859 Sacramento 95864 Yellow-billed Magpie
10/12/20 #20-1867 Yolo 95616 American Crow
10/15/20 #20-1899 Sacramento 95821 California Scrub-Jay
Positive Mosquito Samples for 2020
Date County Zip Species
06/09/20 Sacramento 95624 3 Culex pipiens
06/23/20 Sacramento 95829 8 Culex pipiens
06/26/20 Sacramento 95628 16 Culex pipiens
07/02/20 Sacramento 95662 10 Culex pipiens
07/02/20 Sacramento 95628 10 Culex pipiens
07/07/20 Sacramento 95829 19 Culex tarsalis
07/10/20 Sacramento 95662 16 Culex pipiens
07/10/20 Sacramento 95628 6 Culex pipiens
07/10/20 Sacramento 95628 10 Culex pipiens
07/10/20 Sacramento 95608 20 Culex pipiens
07/10/20 Sacramento 95608 14 Culex pipiens
07/14/20 Yolo 95695 50 Culex tarsalis
07/14/20 Sacramento 95830 50 Culex tarsalis
07/15/20 Sacramento 95621 50 Culex tarsalis
07/17/20 Yolo 95695 50 Culex tarsalis
07/17/20 Sacramento 95670 20 Culex pipiens
07/21/20 Sacramento 95864 34 Culex pipiens
07/21/20 Sacramento 95842 16 Culex pipiens
07/21/20 Sacramento 95837 50 Culex tarsalis
07/21/20 Sacramento 95837 50 Culex tarsalis
07/21/20 Sacramento 95624 1 Culex pipiens
07/24/20 Yolo 95695 50 Culex tarsalis
07/24/20 Sacramento 95826 21 Culex pipiens
07/24/20 Sacramento 95826 11 Culex pipiens
07/24/20 Sacramento 95608 7 Culex pipiens
07/24/20 Sacramento 95608 50 Culex pipiens
07/28/20 Yolo 95695 50 Culex tarsalis
07/28/20 Sacramento 95838 15 Culex pipiens
07/29/20 Sacramento 95621 38 Culex pipiens
07/31/20 Yolo 95776 50 Culex tarsalis
07/31/20 Sacramento 95864 10 Culex pipiens
08/04/20 Yolo 95937 50 Culex tarsalis
08/04/20 Yolo 95937 50 Culex tarsalis
08/04/20 Yolo 95695 50 Culex tarsalis
08/04/20 Yolo 95695 50 Culex tarsalis
08/04/20 Yolo 95645 7 Culex pipiens
08/04/20 Yolo 95618 50 Culex tarsalis
08/04/20 Yolo 95616 50 Culex tarsalis
08/04/20 Yolo 95616 19 Culex pipiens
08/04/20 Sacramento 95632 45 Culex pipiens
08/07/20 Yolo 50 Culex tarsalis
08/07/20 Yolo 95776 50 Culex tarsalis
08/07/20 Yolo 95776 50 Culex tarsalis
08/07/20 Yolo 95695 50 Culex tarsalis
08/07/20 Yolo 95695 2 Culex tarsalis
08/07/20 Sacramento 95758 35 Culex tarsalis
08/07/20 Sacramento 95742 1 Culex tarsalis
08/07/20 Sacramento 95693 23 Culex tarsalis
08/07/20 Sacramento 95662 4 Culex pipiens
08/07/20 Sacramento 95628 5 Culex tarsalis
08/07/20 Sacramento 95628 2 Culex tarsalis
08/07/20 Sacramento 95608 1 Culex tarsalis
08/11/20 Yolo 95937 50 Culex tarsalis
08/11/20 Yolo 95695 50 Culex tarsalis
08/11/20 Yolo 95695 50 Culex tarsalis
08/11/20 Yolo 95695 50 Culex tarsalis
08/11/20 Yolo 95618 50 Culex tarsalis
08/11/20 Yolo 95618 50 Culex tarsalis
08/11/20 Yolo 95618 50 Culex tarsalis
08/11/20 Yolo 95616 41 Culex tarsalis
08/11/20 Sacramento 95632 12 Culex pipiens
08/11/20 Sacramento 95624 3 Culex tarsalis
08/11/20 Sacramento 95624 1 Culex pipiens
08/14/20 Yolo 50 Culex tarsalis
08/14/20 Yolo 95776 50 Culex tarsalis
08/14/20 Yolo 95776 50 Culex tarsalis
08/14/20 Yolo 95776 50 Culex tarsalis
08/14/20 Yolo 95776 2 Culex pipiens
08/14/20 Yolo 95695 8 Culex pipiens
08/14/20 Yolo 95695 50 Culex tarsalis
08/14/20 Yolo 95695 50 Culex tarsalis
08/14/20 Yolo 95695 50 Culex tarsalis
08/14/20 Yolo 95695 37 Culex tarsalis
08/14/20 Sacramento 95826 20 Culex pipiens
08/14/20 Sacramento 95662 15 Culex pipiens
08/14/20 Sacramento 95641 50 Culex tarsalis
08/14/20 Sacramento 95632 20 Culex pipiens
08/14/20 Sacramento 95632 10 Culex pipiens
08/14/20 Sacramento 95628 6 Culex pipiens
08/14/20 Sacramento 95628 14 Culex pipiens
08/14/20 Sacramento 95610 32 Culex pipiens
08/14/20 Sacramento 95610 3 Culex pipiens
08/14/20 Sacramento 95608 5 Culex pipiens
08/18/20 Yolo 95698 3 Culex pipiens
08/18/20 Yolo 95645 50 Culex tarsalis
08/18/20 Yolo 95616 5 Culex pipiens
08/18/20 Yolo 95616 46 Culex tarsalis
08/18/20 Yolo 95616 3 Culex pipiens
08/18/20 Yolo 95616 25 Culex pipiens
08/18/20 Sacramento 95837 13 Culex tarsalis
08/18/20 Sacramento 95835 50 Culex tarsalis
08/18/20 Sacramento 95660 39 Culex tarsalis
08/21/20 Yolo 95776 50 Culex tarsalis
08/21/20 Yolo 95776 50 Culex tarsalis
08/21/20 Yolo 95776 4 Culex pipiens
08/21/20 Yolo 95776 27 Culex tarsalis
08/21/20 Yolo 95695 35 Culex tarsalis
08/21/20 Yolo 95605 10 Culex pipiens
08/21/20 Sacramento 95842 12 Culex pipiens
08/21/20 Sacramento 95757 50 Culex tarsalis
08/21/20 Sacramento 95757 38 Culex pipiens
08/21/20 Sacramento 95757 35 Culex pipiens
08/21/20 Sacramento 95641 39 Culex tarsalis
08/21/20 Sacramento 95632 50 Culex pipiens
08/21/20 Sacramento 95632 30 Culex tarsalis
08/21/20 Sacramento 95632 27 Culex tarsalis
08/21/20 Sacramento 95632 18 Culex tarsalis
08/21/20 Sacramento 95608 1 Culex tarsalis
08/21/20 Sacramento 95608 1 Culex pipiens
08/25/20 Yolo 95937 50 Culex tarsalis
08/25/20 Yolo 95937 50 Culex tarsalis
08/25/20 Yolo 95937 13 Culex pipiens
08/25/20 Yolo 95698 50 Culex tarsalis
08/25/20 Yolo 95695 50 Culex tarsalis
08/25/20 Yolo 95645 50 Culex tarsalis
08/25/20 Yolo 95645 22 Culex tarsalis
08/25/20 Yolo 95616 24 Culex pipiens
08/25/20 Yolo 95616 18 Culex pipiens
08/25/20 Yolo 95616 12 Culex tarsalis
08/25/20 Sacramento 95838 50 Culex tarsalis
08/25/20 Sacramento 95838 50 Culex tarsalis
08/25/20 Sacramento 95838 50 Culex pipiens
08/25/20 Sacramento 95837 50 Culex tarsalis
08/25/20 Sacramento 95835 43 Culex tarsalis
08/25/20 Sacramento 95835 3 Culex pipiens
08/25/20 Sacramento 95829 50 Culex pipiens
08/25/20 Sacramento 95815 6 Culex pipiens
08/25/20 Sacramento 95624 6 Culex pipiens
08/25/20 Sacramento 95624 10 Culex tarsalis
08/28/20 Yolo 95695 23 Culex pipiens
08/28/20 Sacramento 95693 50 Culex tarsalis
08/28/20 Sacramento 95693 10 Culex tarsalis
08/28/20 Sacramento 95693 1 Culex tarsalis
08/28/20 Sacramento 95690 6 Culex pipiens
08/28/20 Sacramento 95632 38 Culex pipiens
08/28/20 Sacramento 95628 12 Culex pipiens
09/01/20 Yolo 95937 38 Culex tarsalis
09/01/20 Yolo 95645 3 Culex pipiens
09/01/20 Yolo 95616 16 Culex pipiens
09/01/20 Sacramento 95838 50 Culex tarsalis
09/01/20 Sacramento 95838 50 Culex tarsalis
09/01/20 Sacramento 95835 50 Culex tarsalis
09/01/20 Sacramento 95834 35 Culex tarsalis
09/03/20 Sacramento 95630 14 Culex pipiens
09/04/20 Yolo 95695 50 Culex tarsalis
09/04/20 Yolo 95695 38 Culex pipiens
09/04/20 Sacramento 95693 50 Culex tarsalis
09/04/20 Sacramento 95693 50 Culex tarsalis
09/04/20 Sacramento 95693 47 Culex tarsalis
09/04/20 Sacramento 95641 50 Culex tarsalis
09/04/20 Sacramento 95641 50 Culex pipiens
09/09/20 Yolo 95698 50 Culex tarsalis
09/09/20 Yolo 95695 40 Culex tarsalis
09/09/20 Yolo 95618 50 Culex tarsalis
09/09/20 Sacramento 95834 50 Culex tarsalis
09/09/20 Sacramento 95833 1 Culex pipiens
09/09/20 Sacramento 95829 1 Culex pipiens
09/11/20 Yolo 95776 3 Culex pipiens
09/11/20 Yolo 95695 21 Culex pipiens
09/11/20 Sacramento 95693 50 Culex tarsalis
09/11/20 Sacramento 95641 50 Culex tarsalis
09/11/20 Sacramento 95641 49 Culex pipiens
09/11/20 Sacramento 95641 37 Culex tarsalis
09/11/20 Sacramento 95632 32 Culex tarsalis
09/15/20 Yolo 95695 50 Culex tarsalis
09/15/20 Yolo 95695 50 Culex tarsalis
09/15/20 Sacramento 95829 16 Culex pipiens
09/15/20 Sacramento 95822 18 Culex pipiens
09/18/20 Yolo 95776 50 Culex tarsalis
09/18/20 Yolo 95605 15 Culex pipiens
09/18/20 Sacramento 95742 50 Culex pipiens
09/18/20 Sacramento 95742 20 Culex pipiens
09/18/20 Sacramento 95641 50 Culex tarsalis
09/22/20 Yolo 95618 3 Culex pipiens
09/22/20 Sacramento 95864 1 Culex tarsalis
09/22/20 Sacramento 95829 13 Culex pipiens
09/22/20 Sacramento 95823 12 Culex tarsalis
09/22/20 Sacramento 95626 3 Culex pipiens
09/25/20 Sacramento 95757 50 Culex pipiens
09/25/20 Sacramento 95742 8 Culex pipiens
09/25/20 Sacramento 95742 21 Culex pipiens
09/25/20 Sacramento 95641 10 Culex tarsalis
09/25/20 Sacramento 95638 50 Culex tarsalis
09/29/20 Yolo 95616 33 Culex tarsalis
09/29/20 Sacramento 95660 3 Culex pipiens
10/01/20 Yolo 95605 36 Culex pipiens
10/02/20 Sacramento 95828 16 Culex pipiens
10/06/20 Yolo 95937 10 Culex tarsalis
10/06/20 Sacramento 95823 14 Culex tarsalis
10/06/20 Sacramento 95758 2 Culex tarsalis
10/06/20 Sacramento 95758 13 Culex pipiens
10/06/20 Sacramento 95624 9 Culex pipiens

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.