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 34 18 52
Dead Birds 47 3 50
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
08/10/20 #20-1173 Yolo 95776 Brewer's Blackbird
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

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.