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

Case Counts by County

CountyDead birds
Alameda4
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado1
Fresno-
Glenn-
Humboldt1
Imperial-
Inyo-
Kern-
Kings-
Lake-
Lassen-
Los Angeles1
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside-
Sacramento6
San Benito-
San Bernardino-
San Diego-
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo2
Santa Barbara-
Santa Clara5
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus1
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total21

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

Weekly Reports

2018-06-182018 YTD SLEV Activity Map
2018-06-182018 YTD WNV Activity Map
2018-06-15Arbovirus Bulletin #11
2018-06-132018 US Arboviral Activity Update
2018-06-08Arbovirus Bulletin #10
2018-06-01Arbovirus Bulletin #9
2018-05-25Arbovirus Bulletin #8
2018-05-18Arbovirus Bulletin #7
2018-05-11Arbovirus Bulletin #6
2018-05-04Arbovirus Bulletin #5
- view full list of Weekly Reports -

Humans

2018-03-292003-2017 WNV Case Summary
2018-03-292017 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

2018-06-15Reported, Tested, Positive 2018
2018-06-15Positive Species for 2018
2018-06-15Positive Counts by City/County for 2018
2018-02-16Positive Species for 2017
2018-02-16Reported, Tested, Positive 2017
2018-02-16Positive Counts by City/County for 2017
2017-03-30Positive Species for 2016
2017-03-30Positive Counts by City/County for 2016
2017-03-30Reported, Tested, Positive 2016
2016-02-29Reported, Tested, Positive 2015
- view full list of Dead Birds -

Mosquitoes

2018-06-15AMOR - NJLT Week 23
2018-06-15AMOR - NJLT 5 Year Average Week 23
2018-06-15AMOR - EVS Week 23
2018-06-15AMOR - GRAVID Week 23
2018-06-08AMOR - NJLT 5 Year Average Week 22
2018-06-08AMOR - GRAVID Week 22
2018-06-08AMOR - EVS Week 22
2018-06-08AMOR - NJLT Week 22
2018-06-01AMOR - GRAVID Week 21
2018-06-01AMOR - NJLT Week 21
- 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

2017-03-082016 YTD WNV Activity Map
2017-01-172016 US Arboviral Activity Update
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
- 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 15, 2018201820175Y AVG
Counties121418
Human cases421
Dead birds212592
Mosquito samples10157117
Sentinel chickens001
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2018 YTD activity -

WNV Reports

Weekly Report

06.18 2018 YTD SLEV Activity Map
06.18 2018 YTD WNV Activity Map
06.15 Arbovirus Bulletin #11

Humans

03.29 2017 Human WNV Incidence Report
03.29 2003-2017 WNV Case Summary
02.08 2016 Human WNV Incidence Report

Dead Birds

06.15Reported, Tested, Positive 2018
06.15Positive Species for 2018
06.15Positive Counts by City/County for 2018

Mosquitoes

06.15 AMOR - EVS Week 23
06.15 AMOR - GRAVID Week 23
06.15 AMOR - NJLT Week 23
- view report archives -