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

Case Counts by County

CountyDead birds
Alameda1
Alpine-
Amador-
Butte-
Calaveras-
Colusa1
Contra Costa-
Del Norte-
El Dorado-
Fresno1
Glenn-
Humboldt-
Imperial-
Inyo-
Kern3
Kings-
Lake1
Lassen-
Los Angeles13
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada1
Orange7
Placer1
Plumas-
Riverside11
Sacramento21
San Benito-
San Bernardino11
San Diego5
San Francisco-
San Joaquin2
San Luis Obispo-
San Mateo1
Santa Barbara-
Santa Clara-
Santa Cruz1
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare8
Tuolumne-
Ventura-
Yolo-
Yuba-
Total89

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

Weekly Reports

2017-07-24Arbovirus Bulletin #16
2017-07-212017 YTD WNV Activity Map
2017-07-182017 US Arboviral Activity Update
2017-07-14Arbovirus Bulletin #15
2017-07-07Arbovirus Bulletin #14
2017-06-30Arbovirus Bulletin #13
2017-06-23Arbovirus Bulletin #12
2017-06-16Arbovirus Bulletin #11
2017-06-09Arbovirus Bulletin #10
2017-06-02Arbovirus Bulletin #9
- view full list of Weekly Reports -

Humans

2017-07-192003-2017 WNV Case Summary
2017-07-192017 Human WNV Incidence Report
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
- view full list of Humans -

Dead Birds

2017-07-21Reported, Tested, Positive 2017
2017-07-21Positive Counts by City/County for 2017
2017-07-21Positive 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

2017-07-21AMOR - EVS Week 28
2017-07-21AMOR - NJLT Week 28
2017-07-21AMOR - GRAVID Week 28
2017-07-21AMOR - NJLT 5 Year Average Week 28
2017-07-14AMOR - NJLT 5 Year Average Week 27
2017-07-14AMOR - GRAVID Week 27
2017-07-14AMOR - EVS Week 27
2017-07-14AMOR - NJLT Week 27
2017-07-07AMOR - EVS Week 26
2017-07-07AMOR - GRAVID Week 26
- 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 Jul 21, 2017201720165Y AVG
Counties253231
Human cases404
Dead birds89658456
Mosquito samples8951157766
Sentinel chickens213027
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2016 YTD activity -

WNV Reports

Weekly Report

07.24 Arbovirus Bulletin #16
07.21 2017 YTD WNV Activity Map
07.18 2017 US Arboviral Activity Update

Humans

07.19 2017 Human WNV Incidence Report
07.19 2003-2017 WNV Case Summary
02.08 2016 Human WNV Incidence Report

Dead Birds

07.21Positive Counts by City/County for 2017
07.21Positive Species for 2017
07.21Reported, Tested, Positive 2017

Mosquitoes

07.21 AMOR - EVS Week 28
07.21 AMOR - GRAVID Week 28
07.21 AMOR - NJLT Week 28
- view report archives -