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-
Kern-
Kings-
Lake-
Lassen-
Los Angeles-
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside-
Sacramento-
San Benito-
San Bernardino-
San Diego1
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo-
Santa Barbara-
Santa Clara-
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total1

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

Weekly Reports

2019-04-12Arbovirus Bulletin #2
2019-04-09 2019 YTD WNV Activity Map
2019-04-09Arbovirus Bulletin #1
2019-04-032018 YTD WNV Activity Map
2018-12-142018 YTD SLEV Activity Map
2018-12-14Arbovirus Bulletin #35
2018-11-30Arbovirus Bulletin #34
2018-11-16Arbovirus Bulletin #33
2018-11-09Arbovirus Bulletin #32
2018-11-02Arbovirus Bulletin #31
- view full list of Weekly Reports -

Humans

2019-04-032003-2018 WNV Case Summary
2019-04-032018 Human WNV Incidence Report
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
- view full list of Humans -

Dead Birds

2019-04-19Positive Counts by City/County for 2019
2019-04-19Reported, Tested, Positive 2019
2019-04-19Positive Species for 2019
2019-04-08Positive Counts by City/County for 2018
2019-04-08Reported, Tested, Positive 2018
2019-04-08Positive Species for 2018
2018-02-16Positive Counts by City/County for 2017
2018-02-16Positive Species for 2017
2018-02-16Reported, Tested, Positive 2017
2017-03-30Positive Species for 2016
- view full list of Dead Birds -

Mosquitoes

2019-04-19AMOR - EVS Week 15
2019-04-19AMOR - NJLT 5 Year Average Week 15
2019-04-19AMOR - NJLT Week 15
2019-04-19AMOR - GRAVID Week 15
2019-04-12AMOR - NJLT Week 14
2019-04-12AMOR - EVS Week 14
2019-04-12AMOR - NJLT 5 Year Average Week 14
2019-04-12AMOR - GRAVID Week 14
2018-11-09AMOR - EVS Week 44
2018-11-09AMOR - NJLT 5 Year Average Week 44
- view full list of Mosquitoes -

Horses

2018-08-102016 Confirmed Equine Cases Report
2018-08-102015 Confirmed Equine Cases Report
2018-08-102014 Confirmed Equine Cases Report
2018-08-102013 Confirmed Equine Cases Report
2018-08-102012 Confirmed Equine Cases Report
2018-08-102011 Confirmed Equine Cases Report
2018-08-102017 Confirmed Equine Cases Report
2010-12-162010 Confirmed Equine Cases Report
2010-12-162010 Equine WNV Result Map
2010-05-262009 Equine WNV Result Map
- view full list of Horses -

Reports and Analyses

2018-09-212017 US Arboviral Activity Update
2018-04-042017 YTD WNV Activity Map
2018-01-122017 YTD SLEV Activity Map
2017-03-082016 YTD WNV Activity Map
2017-01-172016 US Arboviral Activity Update
2015-04-022014 YTD WNV Activity Map
2013-02-252012 YTD WNV Activity Map
2012-12-112012 US Arboviral Activity Update
2012-08-222011 West Nile virus Activity in California
2012-07-111999-2010 Total WNND cases by year
- view full list of Reports and Analyses -

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

As of Apr 19, 2019201920185Y AVG
Counties224
Human cases000
Dead birds148
Mosquito samples101
Sentinel chickens000
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2019 YTD activity -

WNV Reports

Weekly Report

04.12 Arbovirus Bulletin #2
04.09 Arbovirus Bulletin #1
04.09 2019 YTD WNV Activity Map

Humans

04.03 2018 Human WNV Incidence Report
04.03 2003-2018 WNV Case Summary
03.29 2017 Human WNV Incidence Report

Dead Birds

04.19Positive Counts by City/County for 2019
04.19Positive Species for 2019
04.19Reported, Tested, Positive 2019

Mosquitoes

04.19 AMOR - EVS Week 15
04.19 AMOR - GRAVID Week 15
04.19 AMOR - NJLT Week 15
- view report archives -