CA Dept. of Public Health UC Davis Arbovirus Research and Training Mosquito and Vector Control Assoc. of CA

Case Counts by County

CountyDead birds
Alameda2
Alpine-
Amador-
Butte5
Calaveras-
Colusa1
Contra Costa19
Del Norte-
El Dorado2
Fresno5
Glenn2
Humboldt1
Imperial-
Inyo-
Kern3
Kings1
Lake5
Lassen-
Los Angeles101
Madera1
Marin1
Mariposa-
Mendocino-
Merced1
Modoc-
Mono-
Monterey1
Napa-
Nevada1
Orange57
Placer4
Plumas-
Riverside41
Sacramento86
San Benito-
San Bernardino45
San Diego41
San Francisco1
San Joaquin7
San Luis Obispo6
San Mateo1
Santa Barbara1
Santa Clara12
Santa Cruz1
Shasta2
Sierra-
Siskiyou-
Solano4
Sonoma5
Stanislaus6
Sutter3
Tehama-
Trinity-
Tulare8
Tuolumne-
Ventura2
Yolo14
Yuba6
Total505

WNV Activity by County
Printable Version
2017 | 2016 | 2015 | 2014
2013 | 2012 | 2011
2010 | 2009 | 2008
2007

Dead Birds

2017-12-11Reported, Tested, Positive 2017
2017-12-11Positive Counts by City/County for 2017
2017-12-11Positive Species for 2017
2017-03-30Reported, Tested, Positive 2016
2017-03-30Positive Species for 2016
2017-03-30Positive Counts by City/County for 2016
2016-02-29Positive Species for 2015
2016-02-29Reported, Tested, Positive 2015
2016-02-29Positive Counts by City/County for 2015
2015-03-12Reported, Tested, Positive 2014
2015-03-12Positive Species for 2014
2015-03-12Positive Counts by City/County for 2014
2014-03-07Reported, Tested, Positive 2013
2014-03-07Positive Counts by City/County for 2013
2014-03-07Positive Species for 2013
2014-02-20Positive Counts by City/County for 2014
2014-02-20Reported, Tested, Positive 2014 YTD
2014-02-20Positive Species for 2014
2013-03-04Positive Species for 2012
2013-03-04Positive Counts by City/County for 2012
2013-03-04Reported, Tested, Positive 2012
2012-01-24Reported, Tested, Positive 2011 YTD
2012-01-24Positive Species for 2011
2012-01-24Positive Counts by City/County for 2011
2011-04-05Positive Counts by City/County for 2010
2011-03-10Reported, Tested, Positive 2010
2011-03-10Positive Species for 2010
2010-03-10Reported, Tested, Positive 2009 YTD
2010-03-10Reported, Tested, Positive 2009
2010-03-10Positive Species for 2009
2010-03-10Positive Counts by City/County for 2009
2009-04-09Positive Species for 2008
2009-04-09Positive Counts by City/County for 2008
2009-04-09Reported, Tested, Positive 2008
2009-03-03Reported, Tested, Positive 2008 YTD
2009-02-27Reported, Tested, Positive 2007 YTD
2008-11-07Submission Data for 11/3/08 - 11/7/08
2008-10-31Submission Data for 10/27/08 - 10/31/08
2008-10-24Submission Data for 10/20/08 - 10/24/08
2008-10-17Submission Data for 10/13/08 - 10/17/08
2008-10-10Submission Data for 10/6/08 - 10/10/08
2008-10-03Submission Data for 9/29/08 - 10/3/08
2008-09-26Submission Data for 9/22/08 - 9/26/08
2008-09-19Submission Data for 9/15/08 - 9/19/08
2008-09-12Submission Data for 9/8/08 - 9/12/08
2008-09-05Submission Data for 9/1/08 - 9/5/08
2008-08-29Submission Data for 8/25/08 - 8/29/08
2008-08-22Submission Data for 8/18/08 - 8/22/08
2008-08-15Submission Data for 8/11/08 - 8/15/08
2008-08-08Submission Data for 8/4/08 - 8/8/08
2008-08-01Submission Data for 7/25/08 - 8/1/08
2008-07-25Submission Data for 7/21/08 - 7/25/08
2008-07-18Submission Data for 7/14/08 - 7/18/08
2008-07-11Submission Data for 7/7/08 - 7/11/08
2008-07-03Submission Data for 6/30/08 - 7/03/08
2008-06-27Submission Data for 6/23/08 - 6/27/08
2008-06-20Positive Counts by City/County for 2007
2008-06-20Submission Data for 6/16/08 - 6/20/08
2008-06-13Submission Data for 6/9/08 - 6/13/08
2008-06-06Submission Data for 6/2/08 - 6/6/08
2008-05-30Submission Data for 5/26/08 - 5/30/08
2008-05-23Submission Data for 5/19/08 - 5/23/08
2008-05-16Submission Data for 5/12/08 - 5/16/08
2008-05-14Positive Species for 2007
2008-05-09Submission Data for 5/5/08 - 5/9/08
2008-05-02Submission Data for 4/28/08 - 5/2/08
2008-04-25Submission Data for 4/21/08 - 4/25/08
2008-04-18Submission Data for 4/14/08 - 4/18/08
2008-04-11Submission Data for 4/7/08 - 4/11/08
2008-04-04Submission Data for 3/31/08 - 4/4/08
2008-03-28Submission Data for 3/24/08 - 3/28/08
2008-03-21Submission Data for 3/17/08 - 3/21/08
2008-03-14Submission Data for 3/10/08 - 3/14/08
2008-01-25Submission Data for 1/1/08 - 1/25/08
2008-01-10Reported, Tested, Positive 2007
2007-12-21Submission Data for 12/10/07 - 12/21/07
2007-12-07Submission Data for 12/3/07 - 12/7/07
2007-11-30Submission Data for 11/19/07 - 11/30/07
2007-11-17Submission Data for 11/12/07 - 11/16/07
2007-11-09Submission Data for 11/05/07 - 11/09/07
2007-11-02Submission Data for 10/29/07 - 11/02/07
2007-10-26Submission Data for 10/22/07 - 10/26/07
2007-10-19Submission Data for 10/15/07 - 10/19/07
2007-10-12Submission Data for 10/08/07 - 10/12/07
2007-10-05Submission Data for 10/01/07 - 10/05/07
2007-10-01Submission Data for 9/24/07 - 9/21807
2007-09-21Submission Data for 9/17/07 - 9/21/07
2007-09-14Submission Data for 9/10/07 - 9/14/07
2007-08-31Submission Data for 8/27/07 - 8/31/07
2007-08-24Submission Data for 8/20/07 - 8/24/07
2007-08-17Submission Data for 8/13/07 - 8/17/07
2007-08-10Submission Data for 8/6/07 - 8/10/07
2007-08-03Submission Data for 7/30/07 - 8/03/07
2007-07-27Submission Data for 7/23/07 - 7/27/07
2007-07-20Submission Data for 7/16/07 - 7/20/07
2007-07-13Submission Data for 7/09/07 - 7/13/07
2007-07-06Submission Data for 7/02/07 - 7/06/07
2007-06-29Submission Data for 6/22/07 - 6/29/07
2007-06-25Submission Data for 6/15/07 - 6/21/07
2007-06-15Submission Data for 6/8/07 - 6/14/07
2007-06-08Submission Data for 6/1/07 - 6/7/07
2007-06-01Submission Data for 5/25/07 - 5/31/07
2007-05-29Submission Data for 5/18/07 - 5/24/07
2007-05-18Submission Data for 5/11/07 - 5/17/07
2007-05-11Submission Data for 5/4/07 - 5/10/07
2007-05-08Submission Data for 4/27/07 - 5/3/07
2007-04-30Submission Data for 4/20/07 - 4/26/07
2007-04-20Submission Data for 4/13/07 - 4/19/07
2007-04-13Submission Data for 4/6/07 - 4/13/07
2007-04-06Submission Data for 3/30/07 - 4/5/07
2007-03-30Submission Data for 3/16/07 - 1/29/07
2007-03-16Submission Data for 3/3/07 - 3/15/07
2007-02-15Submission Data for 2/2/07 - 2/25/07
2007-01-25Submission Data for 1/19/07 - 1/25/07
2007-01-012006 Positive Counts by City/County

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Compared to previous year and previous five-year average to date

As of Dec 11, 2017201720165Y AVG
Counties473841
Human cases489405525
Dead birds50513471600
Mosquito samples337035193112
Sentinel chickens305343451
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2016 YTD activity -

WNV Reports

Weekly Report

12.11 2017 YTD WNV Activity Map
12.06 2017 YTD SLEV Activity Map
12.05 2017 US Arboviral Activity Update

Humans

11.30 2017 Human WNV Incidence Report
11.30 2003-2017 WNV Case Summary
02.08 2016 Human WNV Incidence Report

Dead Birds

12.11Positive Counts by City/County for 2017
12.11Positive Species for 2017
12.11Reported, Tested, Positive 2017

Mosquitoes

11.09 AMOR - EVS Week 44
11.09 AMOR - GRAVID Week 44
11.09 AMOR - NJLT Week 44
- view report archives -