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

Case Counts by County

CountyDead birds
Alameda-
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado-
Fresno-
Glenn-
Humboldt-
Imperial-
Inyo-
Kern1
Kings-
Lake-
Lassen-
Los Angeles3
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada1
Orange2
Placer-
Plumas-
Riverside1
Sacramento10
San Benito-
San Bernardino1
San Diego2
San Francisco-
San Joaquin1
San Luis Obispo-
San Mateo1
Santa Barbara-
Santa Clara-
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare4
Tuolumne-
Ventura-
Yolo-
Yuba-
Total27

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

Weekly Reports

2017-06-23Arbovirus Bulletin #12
2017-06-232017 YTD WNV Activity Map
2017-06-16Arbovirus Bulletin #11
2017-06-09Arbovirus Bulletin #10
2017-06-02Arbovirus Bulletin #9
2017-05-26Arbovirus Bulletin #8
2017-05-19Arbovirus Bulletin #7
2017-05-12Arbovirus Bulletin #6
2017-05-05Arbovirus Bulletin #5
2017-04-28Arbovirus Bulletin #4
- view full list of Weekly Reports -

Humans

2017-02-082003-2016 WNV Case Summary
2017-02-082016 Human WNV Incidence Report
2016-03-212015 Human WNV Incidence Report
2015-03-092014 Human WNV Incidence Report
2014-08-122013 Human WNV Incidence Report
2013-07-222012 Human WNV Surveillance Report
2013-03-182012 Human WNV Incidence Report
2012-06-132003-2011 WNV Case Summary by County
2012-04-262011 Human WNV Incidence Report
2011-03-112010 Human WNV Incidence Report
- view full list of Humans -

Dead Birds

2017-06-23Reported, Tested, Positive 2017
2017-06-23Positive Counts by City/County for 2017
2017-06-23Positive 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
- view full list of Dead Birds -

Mosquitoes

2017-06-23AMOR - NJLT 5 Year Average Week 24
2017-06-23AMOR - NJLT Week 24
2017-06-23AMOR - EVS Week 24
2017-06-23AMOR - GRAVID Week 24
2017-06-15AMOR - NJLT Week 23
2017-06-15AMOR - GRAVID Week 23
2017-06-15AMOR - NJLT 5 Year Average Week 23
2017-06-15AMOR - EVS Week 23
2017-06-09AMOR - NJLT 5 Year Average Week 22
2017-06-09AMOR - EVS Week 22
- view full list of Mosquitoes -

Horses

2010-12-162010 Confirmed Equine Cases Report
2010-12-162010 Equine WNV Result Map
2010-05-262009 Equine WNV Result Map
2009-10-242009 Confirmed Equine Cases
2008-11-102008 Confirmed Equine Cases
2007-10-042007 Equine WNV Result Map

Reports and Analyses

2012-08-222011 West Nile virus Activity in California
2012-07-111999-2010 Total WNND cases by year
2011-07-111999-2011 Reported WNV Disease Cases in Humans
2010-08-222010 West Nile virus Activity in California
2009-08-222009 WNV Activity by County
2009-01-212008 WNV Activity Map
2009-01-212008 WNV Activity by County
2008-12-162004-2008 Comparative Line Graphs of West Nile Virus Activity
2008-03-072007 YTD WNV Activity Map
2008-01-282007 WNV Activity by County
- view full list of Reports and Analyses -

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

As of Jun 23, 2017201720165Y AVG
Counties162122
Human cases201
Dead birds27279157
Mosquito samples302264172
Sentinel chickens042
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2016 YTD activity -

WNV Reports

Weekly Report

06.23 Arbovirus Bulletin #12
06.23 2017 YTD WNV Activity Map
06.16 Arbovirus Bulletin #11

Humans

02.08 2016 Human WNV Incidence Report
02.08 2003-2016 WNV Case Summary
03.21 2015 Human WNV Incidence Report

Dead Birds

06.23Positive Counts by City/County for 2017
06.23Positive Species for 2017
06.23Reported, Tested, Positive 2017

Mosquitoes

06.23 AMOR - EVS Week 24
06.23 AMOR - GRAVID Week 24
06.23 AMOR - NJLT Week 24
- view report archives -