West Nile Virus Activity - Sacramento-Yolo Mosquito & Vector Control District

2011 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 in 2011. Archived data is available for 2007 activity, 2008, 2009 and 2010. Download a PDF of the West Nile Risk Assessment for 8/24/2011

West Nile virus positives total for 2011

Sacramento
County Yolo
County Total

Humans 1 0 1

Horses 0 0 0

Sentinel Animals 7 3 10

Mosquito Samples 381 7 388

Dead Birds 141 12 153

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 City Zip Code

10/04/2011 Sacramento Rancho Cordova Pending

Horses tested positive for West Nile virus:

Reported County City Zip Code

Sentinel animals tested positive for West Nile virus:

Tested County City Zip Code

08/24/2011 Sacramento Wilton 95693
09/13/2011 Sacramento Wilton 95693
09/13/2011 Sacramento Elk Grove 95624
10/04/2011 Sacramento Elk Grove 95624
10/06/2011 Sacramento Wilton 95693
10/14/2011 Yolo Davis 95616
10/14/2011 Yolo Davis 95616
10/14/2011 Yolo Davis 95616
10/13/2011 Sacramento Wilton 95693
10/20/2011 Sacramento Wilton 95693

Mosquito Samples tested positive for West Nile virus:

Collected County City Zip Code Species

07/06/2011 Sacramento Wilton 95693 Cx pipiens (16)

07/12/2011 Sacramento Elk Grove 95624 Cx tarsalis (8)

07/12/2011 Sacramento Wilton 95693 Cx tarsalis (35)

07/15/2011 Sacramento Wilton 95693 Cx tarsalis (1)

07/15/2011 Sacramento Wilton 95693 Cx stigmatosoma (2)

07/15/2011 Sacramento Wilton 95693 Cx tarsalis (50)

07/15/2011 Sacramento Wilton 95693 Cx pipiens (7)

07/15/2011 Sacramento Citrus Heights 95610 Cx pipiens (22)

07/19/2011 Sacramento Elk Grove 95823 Cx tarsalis (50)

07/19/2011 Sacramento Elk Grove 95823 Cx pipiens (51)

07/22/2011 Sacramento Wilton 95693 Cx tarsalis (14)

07/22/2011 Sacramento Wilton 95693 Cx pipiens (3)

07/22/2011 Sacramento Wilton 95693 Cx pipiens (19)

07/22/2011 Sacramento Wilton 95693 Cx tarsalis (32)

07/22/2011 Sacramento Elk Grove 95758 Cx tarsalis (50)

07/22/2011 Sacramento Elk Grove 95758 Cx pipiens (18)

07/22/2011 Sacramento Wilton 95693 Cx tarsalis (25)

07/22/2011 Sacramento Wilton 95693 Cx pipiens (30)

07/22/2011 Sacramento Wilton 95693 Cx stigmatosoma (14)

07/22/2011 Sacramento Elk Grove 95758 Cx pipiens (14)

07/22/2011 Sacramento Elk Grove 95758 Cx pipiens (39)

07/26/2011 Sacramento Elk Grove 95823 Cx tarsalis (45)

07/26/2011 Sacramento Elk Grove 95823 Cx pipiens (50)

07/26/2011 Sacramento Elk Grove 95823 Cx pipiens (11)

07/26/2011 Sacramento Elk Grove 95823 Cx pipiens (1)

07/26/2011 Sacramento Wilton 95693 Cx tarsalis (17)

07/26/2011 Sacramento Wilton 95693 Cx pipiens (5)

07/29/2011 Sacramento Elk Grove 95758 Cx pipiens (6)

07/29/2011 Sacramento Wilton 95693 Cx tarsalis (2)

07/29/2011 Sacramento Wilton 95693 Cx pipiens (6)

07/29/2011 Sacramento Wilton 95693 Cx pipiens (12)

07/29/2011 Sacramento Sacramento 95823 Cx pipiens (6)

07/29/2011 Sacramento Galt 95632 Cx tarsalis (24)

07/29/2011 Sacramento Galt 95632 Cx pipiens (1)

07/29/2011 Sacramento Wilton 95693 Cx tarsalis (27)

07/29/2011 Sacramento Wilton 95693 Cx pipiens (41)

07/29/2011 Sacramento Wilton 95693 Cx stigmatosoma (5)

07/29/2011 Sacramento Elk Grove 95758 Cx tarsalis (50)

07/29/2011 Sacramento Elk Grove 95758 Cx tarsalis (16)

07/29/2011 Sacramento Elk Grove 95758 Cx pipiens (2)

07/29/2011 Sacramento Sacramento 95823 Cx tarsalis (50)

07/29/2011 Sacramento Sacramento 95823 Cx tarsalis (14)

07/29/2011 Sacramento Sacramento 95823 Cx pipiens (50)

07/29/2011 Sacramento Sacramento 95823 Cx pipiens (11)

07/29/2011 Sacramento Elk Grove 95758 Cx tarsalis (6)

07/29/2011 Sacramento Elk Grove 95758 Cx pipiens (3)

07/29/2011 Sacramento Wilton 95693 Cx tarsalis (1)

08/02/2011 Sacramento Elk Grove 95823 Cx pipiens (44)

08/05/2011 Sacramento Elk Grove 95624 Cx pipiens (7)

08/09/2011 Sacramento Elk Grove 95758 Cx tarsalis (35)

08/09/2011 Sacramento Elk Grove 95758 Cx pipiens (31)

08/09/2011 Sacramento Elk Grove 95758 Cx pipiens (1)

08/09/2011 Sacramento Elk Grove 95758 Cs incidens (23)

08/09/2011 Sacramento Elk Grove 95758 Cx tarsalis (4)

08/09/2011 Sacramento Elk Grove 95758 Cx tarsalis (1)

08/09/2011 Sacramento Elk Grove 95624 Cx pipiens (30)

08/09/2011 Sacramento Wilton 95693 Cx tarsalis (14)

08/09/2011 Sacramento Wilton 95693 Cx pipiens (19)

08/09/2011 Sacramento Elk Grove 95624 Cx tarsalis (35)

08/09/2011 Sacramento Elk Grove 95624 Cx tarsalis (1)

08/09/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/09/2011 Sacramento Wilton 95693 Cx tarsalis (47)

08/09/2011 Sacramento Wilton 95693 Cx pipiens (8)

08/09/2011 Sacramento Wilton 95693 Cx pipiens (1)

08/09/2011 Sacramento Galt 95632 Cx pipiens (3)

08/09/2011 Sacramento Elk Grove 95823 Cx tarsalis (50)

08/09/2011 Sacramento Elk Grove 95823 Cx tarsalis (50)

08/09/2011 Sacramento Elk Grove 95823 Cx tarsalis (41)

08/09/2011 Sacramento Elk Grove 95823 Cx pipiens (50)

08/09/2011 Sacramento Elk Grove 95823 Cx pipiens (50)

08/09/2011 Sacramento Elk Grove 95823 Cx pipiens (50)

08/09/2011 Sacramento Sacramento 95828 Cx pipiens (52)

08/09/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/09/2011 Sacramento Wilton 95693 Cx tarsalis (47)

08/09/2011 Sacramento Wilton 95693 Cx pipiens (28)

08/09/2011 Sacramento Elk Grove 95758 Cx tarsalis (35)

08/09/2011 Sacramento Rancho Cordova 95670 Cx tarsalis (7)

08/09/2011 Sacramento Rancho Cordova 95670 Cx pipiens (2)

08/09/2011 Sacramento Sacramento 95823 Cx tarsalis (23)

08/09/2011 Sacramento Sacramento 95823 Cx pipiens (50)

08/09/2011 Sacramento Sacramento 95823 Cx pipiens (8)

08/09/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/09/2011 Sacramento Wilton 95693 Cx tarsalis (45)

08/12/2011 Sacramento Elk Grove 95758 Cx pipiens (15)

08/12/2011 Sacramento Elk Grove 95758 Cx pipiens (8)

08/12/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/12/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/12/2011 Sacramento Wilton 95693 Cx tarsalis (29)

08/12/2011 Sacramento Wilton 95693 Cx pipiens (2)

08/12/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/12/2011 Sacramento Wilton 95693 Cx pipiens (36)

08/12/2011 Sacramento Rancho Cordova 95670 Cx pipiens (3)

08/12/2011 Sacramento Sacramento 95832 Cx tarsalis (42)

08/12/2011 Sacramento Sacramento 95832 Cx tarsalis (34)

08/16/2011 Sacramento Hood 95757 Cx tarsalis (15)

08/18/2011 Sacramento Elk Grove 95624 Cx pipiens (50)

08/18/2011 Sacramento Elk Grove 95624 Cx tarsalis (50)

08/18/2011 Sacramento Elk Grove 95757 Cx tarsalis (24)

08/18/2011 Sacramento Elk Grove 95757 Cx pipiens (44)

08/18/2011 Sacramento Elk Grove 95758 Cx tarsalis (14)

08/18/2011 Sacramento Elk Grove 95758 Cx pipiens (19)

08/18/2011 Sacramento Elk Grove 95758 Cs incidens (6)

08/18/2011 Sacramento Wilton 95693 Cx tarsalis (10)

08/18/2011 Sacramento Wilton 95693 Cx pipiens (4)

08/18/2011 Sacramento Wilton 95693 Cx tarsalis (15)

08/18/2011 Sacramento Wilton 95693 Cx tarsalis (6)

08/18/2011 Sacramento Elk Grove 95758 Cx pipiens (26)

08/18/2011 Sacramento Elk Grove 95758 Cx tarsalis (15)

08/18/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/18/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/18/2011 Sacramento Wilton 95693 Cx pipiens (27)

08/18/2011 Sacramento Wilton 95693 Cx pipiens (10)

08/18/2011 Sacramento Wilton 95693 Cx pipiens (39)

08/18/2011 Sacramento Elk Grove 95758 Cx tarsalis (7)

08/18/2011 Sacramento Elk Grove 95758 Cx tarsalis (1)

08/18/2011 Sacramento Elk Grove 95758 Cx pipiens (7)

08/18/2011 Sacramento Florin 95823 Cx pipiens (2)

08/18/2011 Sacramento Sacramento 95823 Cx tarsalis (21)

08/18/2011 Sacramento Sacramento 95823 Cx pipiens (34)

08/18/2011 Sacramento Sacramento 95823 Cx pipiens (10)

08/18/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/18/2011 Sacramento Sacramento 95828 Cx tarsalis (5)

08/18/2011 Sacramento Sacramento 95828 Cx pipiens (16)

08/18/2011 Sacramento Sacramento 95828 Cx pipiens (14)

08/18/2011 Sacramento Galt 95632 Cx tarsalis (25)

08/18/2011 Sacramento Galt 95632 Cx pipiens (5)

08/18/2011 Sacramento Elk Grove 95624 Cx tarsalis (50)

08/18/2011 Sacramento Elk Grove 95757 Cx pipiens (42)

08/18/2011 Sacramento Elk Grove 95624 Cx tarsalis (15)

08/20/2011 Sacramento Elk Grove 95624 Cx pipiens (6)

08/20/2011 Sacramento Elk Grove 95758 Cx tarsalis (5)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (17)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (4)

08/20/2011 Sacramento Elk Grove 95758 Cx tarsalis (49)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (6)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (7)

08/20/2011 Sacramento Sacramento 95823 Cx pipiens (30)

08/20/2011 Sacramento Elk Grove 95624 Cx tarsalis (16)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (4)

08/20/2011 Sacramento Elk Grove 95758 Cx tarsalis (33)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (5)

08/20/2011 Sacramento Elk Grove 95823 Cx tarsalis (50)

08/20/2011 Sacramento Elk Grove 95823 Cx pipiens (50)

08/20/2011 Sacramento Elk Grove 95823 Cx pipiens (29)

08/20/2011 Sacramento Elk Grove 95758 Cx tarsalis (50)

08/20/2011 Sacramento Elk Grove 95758 Cx tarsalis (5)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (4)

08/20/2011 Sacramento Elk Grove 95758 Cx tarsalis (26)

08/20/2011 Sacramento Elk Grove 95758 Cx tarsalis (18)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (4)

08/20/2011 Sacramento Sacramento 95829 Cx tarsalis (3)

08/20/2011 Sacramento Sacramento 95828 Cx pipiens (5)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (12)

08/20/2011 Sacramento Sacramento 95823 Cx pipiens (36)

08/20/2011 Sacramento Elk Grove 95758 Cx pipiens (8)

08/20/2011 Sacramento Rancho Murieta 95683 Cx pipiens (1)

08/20/2011 Sacramento Wilton 95693 Cx tarsalis (27)

08/20/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/20/2011 Sacramento Wilton 95693 Cx tarsalis (43)

08/20/2011 Sacramento Wilton 95693 Cx tarsalis (1)

08/20/2011 Sacramento Wilton 95693 Cx pipiens (27)

08/20/2011 Sacramento Wilton 95693 Cx stigmatosoma (2)

08/20/2011 Sacramento Wilton 95693 Cx tarsalis (6)

08/20/2011 Sacramento Wilton 95693 Cx tarsalis (37)

08/20/2011 Sacramento Sacramento 95838 Cx pipiens (10)

08/20/2011 Sacramento Sacramento 95828 Cx tarsalis (6)

08/20/2011 Sacramento Sacramento 95838 Cx tarsalis (23)

08/20/2011 Sacramento Sacramento 95838 Cx pipiens (46)

08/20/2011 Sacramento Sacramento 95838 Cx stigmatosoma (1)

08/20/2011 Sacramento Elk Grove 95624 Cx tarsalis (1)

08/20/2011 Sacramento Elk Grove 95624 Cx pipiens (5)

08/20/2011 Sacramento Sacramento 95823 Cx tarsalis (18)

08/20/2011 Sacramento Sacramento 95823 Cx pipiens (27)

08/23/2011 Sacramento Galt 95632 Cx tarsalis (39)

08/23/2011 Sacramento Galt 95632 Cx pipiens (40)

08/23/2011 Sacramento Galt 95632 Cx pipiens (5)

08/23/2011 Sacramento Galt 95632 Cx pipiens (50)

08/23/2011 Sacramento Elk Grove 95823 Cx tarsalis (33)

08/23/2011 Sacramento Galt 95632 Cx tarsalis (12)

08/23/2011 Yolo Woodland 95776 Cx tarsalis (50)

08/25/2011 Sacramento Sacramento 95838 Cx tarsalis (8)

08/25/2011 Sacramento Sacramento 95838 Cx tarsalis (1)

08/25/2011 Sacramento Sacramento 95832 Cx tarsalis (37)

08/25/2011 Sacramento Sacramento 95832 Cx tarsalis (25)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (18)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (3)

08/26/2011 Sacramento Elk Grove 95758 Cx tarsalis (3)

08/26/2011 Sacramento Elk Grove 95758 Cx tarsalis (23)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (18)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (4)

08/26/2011 Sacramento Elk Grove 95624 Cx tarsalis (3)

08/26/2011 Sacramento Elk Grove 95624 Cx pipiens (4)

08/26/2011 Sacramento Elk Grove 95624 Cx pipiens (7)

08/26/2011 Sacramento Elk Grove 95758 Cx tarsalis (32)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (6)

08/26/2011 Sacramento Elk Grove 95758 Cx tarsalis (4)

08/26/2011 Sacramento Elk Grove 95624 Cx pipiens (14)

08/26/2011 Sacramento Elk Grove 95823 Cx tarsalis (28)

08/26/2011 Sacramento Elk Grove 95823 Cx pipiens (47)

08/26/2011 Sacramento Elk Grove 95823 Cx pipiens (21)

08/26/2011 Sacramento Elk Grove 95624 Cx pipiens (9)

08/26/2011 Sacramento Elk Grove 95624 Cx tarsalis (17)

08/26/2011 Sacramento Elk Grove 95624 Cx pipiens (10)

08/26/2011 Sacramento Sacramento 95828 Cx tarsalis (6)

08/26/2011 Sacramento Elk Grove 95624 Cx pipiens (21)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (10)

08/26/2011 Sacramento Sacramento 95829 Cx pipiens (13)

08/26/2011 Sacramento Florin 95823 Cx pipiens (2)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (1)

08/26/2011 Sacramento Elk Grove 95624 Cx tarsalis (50)

08/26/2011 Sacramento Elk Grove 95624 Cx tarsalis (21)

08/26/2011 Sacramento Elk Grove 95624 Cx pipiens (32)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (9)

08/26/2011 Sacramento Elk Grove 95758 Cx erythrothorax (1)

08/26/2011 Sacramento Elk Grove 95758 Cx pipiens (24)

08/26/2011 Sacramento Wilton 95693 Cx tarsalis (50)

08/26/2011 Sacramento Wilton 95693 Cx pipiens (16)

08/30/2011 Sacramento Elk Grove 95757 Cx pipiens (24)

08/31/2011 Sacramento Antelope 95843 Cx pipiens (32)

08/31/2011 Sacramento Sacramento 95838 Cx tarsalis (17)

08/31/2011 Sacramento Sloughhouse 95683 Cx tarsalis (11)

08/31/2011 Yolo Woodland 95776 Cx tarsalis (50)

08/31/2011 Sacramento Sacramento 95828 Cx pipiens (12)

08/31/2011 Sacramento Elk Grove 95624 Cx tarsalis (50)

08/31/2011 Sacramento Sacramento 95828 Cx pipiens (6)

08/31/2011 Sacramento Wilton 95693 Cx tarsalis (14)

08/31/2011 Sacramento Wilton 95693 Cx pipiens (5)

08/31/2011 Sacramento Elk Grove 95624 Cx pipiens (5)

08/31/2011 Sacramento Elk Grove 95624 Cx tarsalis (17)

08/31/2011 Sacramento Elk Grove 95624 Cx pipiens (16)

08/31/2011 Sacramento Sacramento 95829 Cx tarsalis (36)

08/31/2011 Sacramento Elk Grove 95758 Cx tarsalis (4)

09/01/2011 Sacramento Florin 95823 Cx tarsalis (14)

09/01/2011 Sacramento Florin 95823 Cx pipiens (13)

09/01/2011 Sacramento Florin 95823 Cx pipiens (11)

09/01/2011 Sacramento Sacramento 95828 Cx pipiens (35)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (1)

09/01/2011 Sacramento Elk Grove 95758 Cx pipiens (6)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (37)

09/01/2011 Sacramento Sacramento 95823 Cx pipiens (23)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (50)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (49)

09/01/2011 Sacramento Elk Grove 95758 Cx pipiens (18)

09/01/2011 Sacramento Elk Grove 95758 Cx pipiens (10)

09/01/2011 Sacramento Sacramento 95823 Cx pipiens (50)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (4)

09/01/2011 Sacramento Elk Grove 95823 Cx tarsalis (50)

09/01/2011 Sacramento Elk Grove 95823 Cx pipiens (50)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (51)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (6)

09/01/2011 Sacramento Elk Grove 95758 Cx pipiens (6)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (3)

09/01/2011 Sacramento Elk Grove 95758 Cx pipiens (18)

09/01/2011 Sacramento Elk Grove 95758 Cx pipiens (3)

09/01/2011 Sacramento Elk Grove 95758 Cx tarsalis (4)

09/01/2011 Sacramento Elk Grove 95758 Cx pipiens (19)

09/01/2011 Sacramento Wilton 95693 Cx tarsalis (39)

09/01/2011 Sacramento Wilton 95693 Cx tarsalis (5)

09/01/2011 Sacramento Wilton 95693 Cx pipiens (3)

09/01/2011 Sacramento Wilton 95693 Cx tarsalis (3)

09/01/2011 Sacramento Wilton 95693 Cx tarsalis (52)

09/01/2011 Sacramento Wilton 95693 Cx pipiens (15)

09/01/2011 Sacramento Wilton 95693 Cx pipiens (11)

09/01/2011 Sacramento Sacramento 95832 Cx tarsalis (27)

09/01/2011 Sacramento Sacramento 95832 Cx tarsalis (34)

09/01/2011 Sacramento Sacramento 95832 Cx pipiens (5)

09/01/2011 Sacramento Orangevale 95662 Cx pipiens (35)

09/01/2011 Sacramento Citrus Heights 95610 Cx pipiens (16)

09/01/2011 Sacramento Folsom 95630 Cx pipiens (38)

09/07/2011 Sacramento Sacramento 95823 Cx pipiens (29)

09/07/2011 Sacramento Elk Grove 95758 Cx tarsalis (2)

09/07/2011 Sacramento Elk Grove 95758 Cx pipiens (5)

09/07/2011 Sacramento Elk Grove 95758 Cx pipiens (8)

09/07/2011 Sacramento Elk Grove 95758 Cx pipiens (2)

09/07/2011 Sacramento Elk Grove 95823 Cx tarsalis (45)

09/07/2011 Sacramento Florin 95823 Cx tarsalis (17)

09/07/2011 Sacramento Elk Grove 95758 Cx pipiens (19)

09/07/2011 Sacramento Elk Grove 95758 Cx pipiens (16)

09/07/2011 Sacramento Elk Grove 95758 Cx pipiens (2)

09/07/2011 Sacramento Elk Grove 95758 Cx tarsalis (19)

09/07/2011 Sacramento Sacramento 95828 Cx pipiens (31)

09/07/2011 Sacramento Elk Grove 95624 Cx tarsalis (7)

09/07/2011 Sacramento Elk Grove 95758 Cx tarsalis (5)

09/07/2011 Sacramento Elk Grove 95758 Cx pipiens (32)

09/07/2011 Sacramento Elk Grove 95624 Cx pipiens (5)

09/07/2011 Sacramento Elk Grove 95624 Cx pipiens (3)

09/07/2011 Sacramento Elk Grove 95624 Cx pipiens (14)

09/07/2011 Sacramento Elk Grove 95624 Cx tarsalis (30)

09/07/2011 Sacramento Elk Grove 95624 Cx pipiens (50)

09/07/2011 Sacramento Elk Grove 95624 Cx pipiens (9)

09/07/2011 Sacramento Sacramento 95829 Cx tarsalis (2)

09/08/2011 Sacramento Sacramento 95829 Cx tarsalis (50)

09/08/2011 Sacramento Sacramento 95829 Cx tarsalis (8)

09/08/2011 Sacramento Sacramento 95829 Cx pipiens (2)

09/08/2011 Sacramento Elk Grove 95830 Cx tarsalis (47)

09/08/2011 Sacramento Sacramento 95814 Cx tarsalis (2)

09/08/2011 Sacramento Sacramento 95814 Cx pipiens (3)

09/08/2011 Sacramento Wilton 95693 Cx tarsalis (50)

09/08/2011 Sacramento Wilton 95693 Cx pipiens (26)

09/08/2011 Sacramento Sacramento 95820 Cx tarsalis (5)

09/09/2011 Sacramento Galt 95632 Cx pipiens (2)

09/09/2011 Sacramento Citrus Heights 95610 Cx tarsalis (15)

09/09/2011 Sacramento Citrus Heights 95610 Cx pipiens (2)

09/09/2011 Sacramento Sacramento 95943 Cx pipiens (15)

09/09/2011 Sacramento Sacramento 95864 Cx pipiens (5)

09/09/2011 Sacramento Citrus Heights 95610 Cx pipiens (49)

09/09/2011 Sacramento Sacramento 95626 Cx pipiens (8)

09/09/2011 Yolo Woodland 95695 Cx tarsalis (47)

09/09/2011 Yolo Woodland 95695 Cx tarsalis (18)

09/09/2011 Yolo Woodland 95695 Cx pipiens (4)

09/09/2011 Sacramento Elk Grove 95757 Cx erythrothorax (2)

09/13/2011 Sacramento Elk Grove 95758 Cx pipiens (1)

09/13/2011 Sacramento Elk Grove 95758 Cx tarsalis (11)

09/13/2011 Sacramento Elk Grove 95758 Cx pipiens (9)

09/13/2011 Sacramento Elk Grove 95758 Cx pipiens (4)

09/13/2011 Sacramento Elk Grove 95624 Cx pipiens (5)

09/13/2011 Sacramento Elk Grove 95758 Cx tarsalis (5)

09/13/2011 Sacramento Elk Grove 95624 Cx pipiens (20)

09/13/2011 Sacramento Elk Grove 95758 Cx tarsalis (6)

09/13/2011 Sacramento Elk Grove 95624 Cx pipiens (8)

09/13/2011 Sacramento Sacramento 95823 Cx tarsalis (14)

09/13/2011 Sacramento Elk Grove 95758 Cx pipiens (26)

09/13/2011 Sacramento Elk Grove 95823 Cx pipiens (50)

09/13/2011 Sacramento Sacramento 95832 Cx tarsalis (50)

09/13/2011 Sacramento Sacramento 95832 Cx tarsalis (35)

09/16/2011 Sacramento Citrus Heights 95610 Cx pipiens (9)

09/16/2011 Sacramento Orangevale 95662 Cx pipiens (16)

09/16/2011 Sacramento Citrus Heights 95610 Cx pipiens (32)

09/16/2011 Sacramento Sacramento 95820 Cx tarsalis (2)

09/16/2011 Sacramento Sacramento 95820 Cx pipiens (16)

09/16/2011 Sacramento Galt 95632 Cx tarsalis (50)

09/20/2011 Sacramento Galt 95632 Cx pipiens (1)

09/20/2011 Sacramento Sacramento 95829 Cx tarsalis (46)

09/20/2011 Sacramento Elk Grove 95830 Cx pipiens (16)

09/20/2011 Sacramento Elk Grove 95830 Cx pipiens (5)

09/20/2011 Sacramento Elk Grove 95829 Cx pipiens (51)

09/20/2011 Sacramento Orangevale 95662 Cx pipiens (7)

09/20/2011 Sacramento Antelope 95843 Cx tarsalis (32)

09/20/2011 Sacramento Sacramento 95833 Cx pipiens (18)

09/20/2011 Sacramento Antelope 95843 Cx tarsalis (50)

09/20/2011 Sacramento Antelope 95843 Cx pipiens (13)

09/20/2011 Sacramento Sacramento 95838 Cx tarsalis (5)

09/20/2011 Sacramento Sacramento 95838 Cx pipiens (2)

09/20/2011 Sacramento Elverta 95626 Cx tarsalis (33)

09/20/2011 Sacramento Carmichael 95608 Cx pipiens (49)

09/20/2011 Sacramento Carmichael 95608 Cx pipiens (18)

09/20/2011 Sacramento Rancho Murieta 95683 Cx tarsalis (2)

09/20/2011 Sacramento Rancho Murieta 95683 Cx pipiens (3)

09/20/2011 Sacramento Rancho Murieta 95683 Cx pipiens (16)

09/20/2011 Sacramento Sacramento 95822 Cx tarsalis (3)

09/20/2011 Sacramento Sacramento 95831 Cx pipiens (4)

09/23/2011 Sacramento Sacramento 95822 Cx tarsalis (9)

09/23/2011 Sacramento Sacramento 95831 Cx tarsalis (2)

09/23/2011 Sacramento Sacramento 95831 Cx pipiens (19)

09/23/2011 Sacramento Sacramento 95831 Cx pipiens (30)

09/23/2011 Sacramento Elk Grove 95624 Cx tarsalis (38)

09/23/2011 Sacramento Galt 95632 Cx tarsalis (17)

09/23/2011 Sacramento Elk Grove 95624 Cx tarsalis (50)

09/23/2011 Sacramento Elk Grove 95624 Cx tarsalis (51)

09/23/2011 Sacramento Elk Grove 95624 Cx pipiens (50)

09/23/2011 Sacramento Elk Grove 95624 Cx pipiens (50)

09/23/2011 Sacramento Elk Grove 95624 Cx pipiens (50)

09/23/2011 Sacramento Elk Grove 95624 Cx pipiens (16)

09/23/2011 Sacramento Elk Grove 95624 Cx pipiens (1)

09/23/2011 Sacramento Galt 95632 Cx tarsalis (3)

09/23/2011 Sacramento Galt 95632 Cx pipiens (10)

09/23/2011 Sacramento Galt 95632 Cx pipiens (1)

09/23/2011 Sacramento Galt 95632 Cx pipiens (50)

09/23/2011 Sacramento Sacramento 95864 Cx pipiens (23)

09/23/2011 Sacramento Carmichael 95608 Cx pipiens (10)

09/23/2011 Sacramento Sacramento 95838 Cx tarsalis (18)

09/23/2011 Sacramento Carmichael 95608 Cx pipiens (50)

09/23/2011 Sacramento Carmichael 95608 Cx pipiens (4)

09/23/2011 Sacramento Sacramento 95814 Cx pipiens (7)

09/23/2011 Sacramento Sacramento 95843 Cx pipiens (18)

09/23/2011 Sacramento Sacramento 95829 Cx pipiens (50)

09/23/2011 Sacramento Sacramento 95842 Cx pipiens (8)

09/26/2011 Sacramento Elk Grove 95624 Cx pipiens (50)

09/26/2011 Sacramento Wilton 95693 Cx pipiens (50)

09/26/2011 Yolo Woodland 95776 Cx tarsalis (50)

09/26/2011 Yolo Woodland 95776 Cx pipiens (8)

09/29/2011 Sacramento Elk Grove 95624 Cx pipiens (50)

09/29/2011 Sacramento Sacramento 95831 Cx pipiens (20)

09/29/2011 Sacramento Antelope 95843 Cx pipiens (5)

09/29/2011 Sacramento Antelope 95843 Cx pipiens (36)

09/29/2011 Sacramento Sacramento 95829 Cx tarsalis (31)

10/03/2011 Sacramento Orangevale 95662 Cx pipiens (9)

10/18/2011 Sacramento Elk Grove 95624 Cx pipiens (35)

Dead birds tested positive for West Nile virus:

Collected County City Zip Code Species

02/17/2011 Sacramento Elk Grove 95758 American Crow #DB11-63
06/21/2011 Sacramento Sacramento 95821 American Crow #DB11-1087
07/05/2011 Sacramento Wilton 95693 American Crow #DB11-1268
07/06/2011 Sacramento Sacramento 95822 Western Scrub Jay #DB11-1289
07/13/2011 Sacramento Sacramento 95822 Yellow-billed Magpie #DB11-1392
07/14/2011 Sacramento Elk Grove 95758 Western Scrub Jay #DB11-1401
07/15/2011 Sacramento Wilton 95693 American Crow #DB11-1432
07/15/2011 Sacramento Elk Grove 95758 Cooper's Hawk #DB11-1422
07/18/2011 Sacramento Sacramento 95822 American Robin #DB11-1459
07/18/2011 Sacramento Sacramento 95822 American Crow #DB11-1454
07/18/2011 Sacramento Wilton 95693 Western Scrub Jay #DB11-1449
07/18/2011 Sacramento Sacramento 95823 Western Scrub-Jay #DB11-1442
07/18/2011 Sacramento Wilton 95693 American Crow #DB11-1441
07/19/2011 Sacramento Galt 95632 Western Scrub Jay HY #DB11-1479
07/19/2011 Sacramento Wilton 95693 American Crow #DB11-1484
07/20/2011 Sacramento Sacramento 95823 American Crow #DB11-1486
07/21/2011 Sacramento Rancho Cordova 95670 Unknown-Squirrel #Q11-63
07/22/2011 Sacramento Folsom 95630 Western Scrub Jay HY #DB11-1518
07/25/2011 Sacramento Fair Oaks 95628 Unknown #DB11-1535
07/26/2011 Sacramento Elk Grove 95758 Northern Mockingbird #DB11-1576
07/26/2011 Sacramento Elk Grove 95758 Western Scrub Jay #DB11-1573
07/29/2011 Sacramento Wilton 95693 American Crow #DB11-1631
08/02/2011 Sacramento Wilton 95693 American Crow #DB11-1670
08/03/2011 Sacramento Wilton 95693 American Robin HY #DB11-1700
08/04/2011 Sacramento Sacramento 95838 American Crow #DB11-1721
08/04/2011 Sacramento Sacramento 95838 American Crow #DB11-1714
08/05/2011 Sacramento Elk Grove 95757 House Sparrow HY #DB11-1735
08/08/2011 Sacramento Sloughhouse 95683 California Towhee #DB11-1753
08/08/2011 Sacramento Wilton 95693 Western Scrub Jay #DB11-1754
08/11/2011 Sacramento Sloughhouse 95683 Western Srcub Jay #DB11-2092
08/11/2011 Sacramento Elk Grove 95758 American Crow #DB11-1834
08/11/2011 Sacramento Sacramento 95838 Western Scrub Jay #DB11-1845
08/12/2011 Sacramento Sacramento 95823 Western Scrub Jay HY #DB11-1887
08/14/2011 Sacramento Elk Grove 95757 Western Scrub Jay #DB11-1897
08/15/2011 Sacramento Sacramento 95828 American Crow #DB11-1889
08/15/2011 Sacramento Sacramento 95819 Western Scrub Jay HY #DB11-1910
08/15/2011 Sacramento Sacramento 95828 American Crow #DB11-1912
08/15/2011 Sacramento Sacramento 95829 House Finch HY #DB11-1902
08/17/2011 Sacramento Sacramento 95829 American Crow #DB11-1953
08/17/2011 Sacramento Sacramento 95828 House Finch #DB11-1958
08/18/2011 Sacramento Sacramento 95833 Blk-crowned Night HY #DB11-1853
08/18/2011 Sacramento Elk Grove 95758 American Crow #DB11-1992
08/18/2011 Sacramento Elk Grove 95624 American Crow #DB11-2008
08/19/2011 Sacramento Sacramento 95828 American Crow #DB11-2036
08/22/2011 Sacramento Elk Grove 95758 House Sparrow HY #DB11-2071
08/22/2011 Sacramento Sacramento 95826 American Robin HY #DB11-2057
08/22/2011 Sacramento Elk Grove 95624 Western Scrub Jay #DB11-2049
08/22/2011 Sacramento Elk Grove 95624 American Crow HY #DB11-2047
08/22/2011 Sacramento Elk Grove 95624 American Crow #DB11-2041
08/22/2011 Sacramento Sacramento 95828 American Robin HY #DB11-2048
08/23/2011 Sacramento Elk Grove 95624 Western Scrub Jay #DB11-2080
08/23/2011 Sacramento Rio Linda 95673 American Crow #DB11-2090
08/24/2011 Sacramento Elk Grove 95624 American Crow #DB11-2113
08/24/2011 Sacramento Sacramento 95828 House Sparrow #DB11-2114
08/24/2011 Sacramento Elk Grove 95758 House Finch #DB11-2115
08/24/2011 Sacramento Antelope 95843 Western Scrub Jay HY #DB11-2118
08/24/2011 Sacramento Elk Grove 95624 American Crow #DB11-2130
08/24/2011 Sacramento Sacramento 95818 House Finch #DB11-2129
08/25/2011 Yolo Davis 95616 American Crow #DB11-2148
08/25/2011 Sacramento Galt 95632 Nrthern Mckingbrd HY #DB11-2136
08/25/2011 Sacramento Galt 95632 Western Scrub Jay #DB11-2133
08/25/2011 Sacramento Galt 95632 Nrthern Mckingbrd HY #DB11-2135
08/26/2011 Sacramento Elk Grove 95758 House Finch #DB11-2166
08/26/2011 Sacramento Elk Grove 95624 American Robin HY #DB11-2176
08/26/2011 Sacramento Elk Grove 95758 American Robin #DB11-2181
08/26/2011 Sacramento Wilton 95693 Western Scrub Jay HY #DB11-2184
08/29/2011 Sacramento Elk Grove 95624 Yellow-billed Magpie #DB11-2208
08/29/2011 Sacramento Sacramento 95824 Western Scrub Jay #DB11-2194
08/29/2011 Sacramento Wilton 95693 Western Scrub-Jay #DB11-2195
08/29/2011 Yolo Davis 95616 American Robin #DB11-2197
08/29/2011 Sacramento Elk Grove 95624 Yellow-billed Magpie #DB11-2198
08/29/2011 Sacramento Sacramento 95814 American Crow #DB11-2217
08/30/2011 Sacramento Sacramento 95831 Western Scrub-Jay #DB11-2229
08/31/2011 Sacramento Sloughhouse 95683 Western Scrub-Jay HY #DB11-2263
08/31/2011 Sacramento Elk Grove 95758 American Crow #DB11-2247
08/31/2011 Sacramento Sacramento 95826 American Crow #DB11-2257
08/31/2011 Sacramento Sacramento 95822 Western Scrub-Jay #DB11-2245
09/01/2011 Sacramento Elk Grove 95624 American Crow #DB11-2273
09/01/2011 Sacramento Sacramento 95814 American Crow #DB11-2299
09/02/2011 Sacramento Wilton 95693 American Crow #DB11-2308
09/02/2011 Sacramento Sacramento 95830 Western Scrub-Jay HY #DB11-2310
09/02/2011 Sacramento Elk Grove 95757 Western Scrub-Jay #DB11-2329
09/06/2011 Sacramento North Highlands 95660 House Finch #DB11-2340
09/06/2011 Sacramento Elk Grove 95758 Western Scrub-Jay #DB11-2339
09/06/2011 Sacramento Wilton 95693 American Crow #DB11-2346
09/06/2011 Sacramento Elk Grove 95624 American Crow #DB11-2337
09/06/2011 Sacramento Elk Grove 95758 American Crow #DB11-2342
09/06/2011 Yolo Davis 95616 American Crow #DB11-2354
09/07/2011 Yolo Davis 95618 Western Scrub-Jay HY #DB11-2358
09/07/2011 Sacramento Elverta 95626 American Crow #DB11-2369
09/07/2011 Sacramento Orangevale 95662 American Crow #DB11-2375
09/08/2011 Sacramento Elk Grove 95758 Western Scrub-Jay #DB11-2414
09/08/2011 Sacramento Elk Grove 95624 Yellow-billed Magpie #DB11-2410
09/09/2011 Sacramento Elk Grove 95624 Yellow-billed Magpie #DB11-2425
09/09/2011 Sacramento Wilton 95693 American Crow #DB11-2427
09/09/2011 Sacramento Elk Grove 95624 American Crow #DB11-2438
09/12/2011 Sacramento Sacramento 95833 Western Scrub-Jay #DB11-2444
09/12/2011 Sacramento Carmichael 95608 Western Scrub-Jay #DB11-2446
09/12/2011 Sacramento Sacramento 95826 Yellow-billed Magpie #DB11-2448
09/12/2011 Sacramento Sloughhouse 95683 Western Scrub-Jay #DB11-2449
09/12/2011 Sacramento Elk Grove 95758 Western Scrub-Jay #DB11-2451
09/12/2011 Sacramento Sacramento 95829 American Crow #DB11-2455
09/12/2011 Sacramento Sacramento 95822 Western Scrub Jay #DB11-2458
09/12/2011 Sacramento Citrus Heights 95610 American Crow #DB11-2462
09/12/2011 Sacramento Sacramento 95831 Western Scrub-Jay #DB11-2467
09/13/2011 Sacramento Elk Grove 95758 Western Scrub-Jay #DB11-2480
09/14/2011 Sacramento Elk Grove 95624 Western Scrub-Jay #DB11-2516
09/14/2011 Sacramento Wilton 95693 Yellow-billed Magpie #DB11-2502
09/15/2011 Sacramento Wilton 95693 American Crow #DB11-2530
09/15/2011 Sacramento Rancho Cordova 95670 Yellow-billed Magpie #DB11-2533
09/15/2011 Sacramento Sacramento 95838 American Crow #DB11-2538
09/15/2011 Sacramento Sacramento 95816 American Crow #DB11-2575
09/16/2011 Sacramento Elk Grove 95624 American Crow #DB11-2555
09/16/2011 Sacramento Galt 95632 Western Scrub-Jay #DB11-2572
09/17/2011 Sacramento Elk Grove 95624 American Crow #DB11-2577
09/19/2011 Sacramento Wilton 95693 Western Scrub-Jay #DB11-2580
09/19/2011 Sacramento Wilton 95693 American Crow #DB11-2585
09/19/2011 Sacramento Sacramento 95822 American Crow #DB11-2589
09/19/2011 Sacramento Sacramento 95823 American Crow #DB11-2593
09/20/2011 Sacramento Sacramento 95831 Western Scrub Jay #DB11-2639
09/20/2011 Sacramento Sacramento 95817 American Crow #DB11-2616
09/20/2011 Sacramento Rio Linda 95673 American Crow #DB11-2622
09/22/2011 Sacramento Sacramento 95827 Yellow -billed Magpi #DB11-2679
09/22/2011 Yolo Woodland 95695 American Crow #DB11-2672
09/22/2011 Sacramento Sacramento 95831 Western Scrub-Jay #DB11-2676
09/23/2011 Sacramento Elk Grove 95758 American Crow #DB11-2693
09/26/2011 Sacramento Citrus Heights 95610 Western Scrub-Jay #DB11-2715
09/26/2011 Sacramento Fair Oaks 95628 Western Scrub-Jay #DB11-2721
09/26/2011 Sacramento Elk Grove 95624 American Crow #DB11-2722
09/26/2011 Yolo Davis 95616 American Crow #DB11-2732
09/27/2011 Sacramento Elk Grove 95624 American Crow #DB11-2749
09/27/2011 Sacramento Elk Grove 95624 Western Scrub-Jay #DB11-2756
09/28/2011 Yolo Davis 95616 American Crow #DB11-2777
09/29/2011 Sacramento Sacramento 95838 Western Scrub-Jay #DB11-2805
09/30/2011 Sacramento Antelope 95843 American Crow #DB11-2827
10/03/2011 Yolo Davis 95616 Eastern Fox Squirrel #Q11-114
10/03/2011 Sacramento Sacramento 95811 American Crow #DB11-2858
10/03/2011 Sacramento Sacramento 95822 Western Scrub-Jay #DB11-2852
10/03/2011 Sacramento Wilton 95693 American Crow #DB11-2850
10/03/2011 Sacramento Sacramento 95822 Yellow-billed Magpie #DB11-2841
10/04/2011 Sacramento Sacramento 95816 American Crow #DB11-2867
10/05/2011 Yolo Davis 95616 Eastern Fox Squirrel #Q11-115
10/06/2011 Sacramento Elk Grove 95758 House Finch #DB11-2907
10/06/2011 Yolo Davis 95616 Western Scrub-Jay #DB11-2910
10/07/2011 Sacramento Rancho Cordova 95670 american crow #DB11-2937
10/11/2011 Sacramento Sacramento 95814 American Crow #DB11-2949
10/11/2011 Yolo Davis 95616 Squirrel #Q11-117
10/17/2011 Sacramento Sacramento 95822 Fox Squirrel #Q11-131
10/18/2011 Sacramento Rancho Cordova 95670 Fox Squirrel #Q11-132
10/20/2011 Sacramento Carmichael 95608 American Crow #DB11-3039
10/20/2011 Sacramento Sacramento 95822 American Crow #DB11-3045
10/24/2011 Sacramento Sacramento 95823 Western Scrub-Jay #DB11-3054
10/25/2011 Yolo Davis 95616 Western Scrub-Jay #DB11-3061

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.