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

Case Counts by County

CountyDead birds
Alameda20
Alpine-
Amador-
Butte4
Calaveras-
Colusa-
Contra Costa13
Del Norte-
El Dorado2
Fresno-
Glenn-
Humboldt1
Imperial-
Inyo-
Kern1
Kings-
Lake-
Lassen-
Los Angeles19
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange16
Placer44
Plumas-
Riverside6
Sacramento241
San Benito-
San Bernardino-
San Diego1
San Francisco-
San Joaquin16
San Luis Obispo-
San Mateo5
Santa Barbara-
Santa Clara56
Santa Cruz2
Shasta5
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus1
Sutter4
Tehama-
Trinity-
Tulare-
Tuolumne1
Ventura-
Yolo41
Yuba-
Total499

WNV Activity by County
Printable Version
2018 | 2017 | 2016 | 2015 | 2014
2013 | 2012 | 2011
2010 | 2009 | 2008
2007

Dead Birds

2018-12-07Reported, Tested, Positive 2018
2018-12-07Positive Counts by City/County for 2018
2018-12-07Positive Species for 2018
2018-02-16Positive Counts by City/County for 2017
2018-02-16Reported, Tested, Positive 2017
2018-02-16Positive Species for 2017
2017-03-30Positive Counts by City/County for 2016
2017-03-30Reported, Tested, Positive 2016
2017-03-30Positive Species for 2016
2016-02-29Reported, Tested, Positive 2015
2016-02-29Positive Species for 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
2014-03-07Positive Counts by City/County for 2013
2014-03-07Reported, Tested, Positive 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
2012-01-24Positive Counts by City/County for 2011
2012-01-24Reported, Tested, Positive 2011 YTD
2012-01-24Positive Species for 2011
2011-04-05Positive Counts by City/County for 2010
2011-03-10Reported, Tested, Positive 2010
2011-03-10Positive Species for 2010
2010-03-10Positive Counts by City/County for 2009
2010-03-10Reported, Tested, Positive 2009 YTD
2010-03-10Reported, Tested, Positive 2009
2010-03-10Positive Species for 2009
2009-04-09Reported, Tested, Positive 2008
2009-04-09Positive Counts by City/County for 2008
2009-04-09Positive Species for 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 07, 2018201820175Y AVG
Counties414442
Human cases201488548
Dead birds4995061377
Mosquito samples196333703217
Sentinel chickens163305405
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2018 YTD activity -

WNV Reports

Weekly Report

12.11 2018 US Arboviral Activity Update
12.07 2018 YTD SLEV Activity Map
12.07 2018 YTD WNV Activity Map

Humans

12.06 2018 Human WNV Incidence Report
12.06 2003-2018 WNV Case Summary
03.29 2017 Human WNV Incidence Report

Dead Birds

12.07Reported, Tested, Positive 2018
12.07Positive Species for 2018
12.07Positive Counts by City/County for 2018

Mosquitoes

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