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 Diego-
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo-
Santa Barbara-
Santa Clara3
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total3

WNV Activity by County
Printable Version
2020 | 2019 | 2018
2017 | 2016 | 2015
2014 | 2013 | 2012
2011 | 2010 | 2009
2008 | 2007

Weekly Reports

2020-03-272020 YTD WNV Activity Map
2020-03-062020 YTD SLEV Activity Map
2020-03-04 2019 YTD WNV Activity Map
2019-12-06Arbobulletin #35
2019-11-22Arbobulletin #34
2019-11-15Arbobulletin #33
2019-11-152019 YTD SLEV Activity Map
2019-11-08Arbobulletin #32
2019-11-01Arbobulletin #31
2019-10-25Arbobulletin #30
- view full list of Weekly Reports -

Humans

2020-03-022003-2019 WNV Case Summary
2020-03-022019 Human WNV Incidence Report
2019-05-152018 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
- view full list of Humans -

Dead Birds

2020-03-27Positive Species for 2020
2020-03-27Reported, Tested, Positive 2020
2020-03-27Positive Counts by City/County for 2020
2020-03-06Positive Counts by City/County for 2019
2020-03-06Positive Species for 2019
2020-03-06Reported, Tested, Positive 2019
2019-04-08Positive Counts by City/County for 2018
2019-04-08Positive Species for 2018
2019-04-08Reported, Tested, Positive 2018
2018-02-16Reported, Tested, Positive 2017
- view full list of Dead Birds -

Mosquitoes

2019-10-04AMOR - GRAVID Week 39
2019-10-04AMOR - NJLT Week 39
2019-10-04AMOR - EVS Week 39
2019-10-04AMOR - NJLT 5 Year Average Week 39
2019-09-27AMOR - GRAVID Week 38
2019-09-27AMOR - NJLT 5 Year Average Week 38
2019-09-27AMOR - NJLT Week 38
2019-09-27AMOR - EVS Week 38
2019-09-20AMOR - NJLT 5 Year Average Week 37
2019-09-20AMOR - EVS Week 37
- 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

2019-07-102018 US Arboviral Activity Update
2019-05-162018 YTD WNV Activity Map
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
- view full list of Reports and Analyses -

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

As of Mar 20, 2020202020195Y AVG
Counties123
Human cases000
Dead birds314
Mosquito samples010
Sentinel chickens000
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2020 YTD activity -

WNV Reports

Weekly Report

03.27 2020 YTD WNV Activity Map
03.06 2020 YTD SLEV Activity Map
03.04 2019 YTD WNV Activity Map

Humans

03.02 2019 Human WNV Incidence Report
03.02 2003-2019 WNV Case Summary
05.15 2018 Human WNV Incidence Report

Dead Birds

03.27Reported, Tested, Positive 2020
03.27Positive Species for 2020
03.27Positive Counts by City/County for 2020

Mosquitoes

10.04 AMOR - EVS Week 39
10.04 AMOR - GRAVID Week 39
10.04 AMOR - NJLT Week 39
- view report archives -