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-
Butte5
Calaveras-
Colusa1
Contra Costa18
Del Norte-
El Dorado2
Fresno5
Glenn2
Humboldt1
Imperial-
Inyo-
Kern3
Kings1
Lake4
Lassen-
Los Angeles91
Madera1
Marin1
Mariposa-
Mendocino-
Merced1
Modoc-
Mono-
Monterey1
Napa-
Nevada1
Orange52
Placer3
Plumas-
Riverside40
Sacramento86
San Benito-
San Bernardino45
San Diego33
San Francisco1
San Joaquin6
San Luis Obispo2
San Mateo1
Santa Barbara-
Santa Clara8
Santa Cruz1
Shasta2
Sierra-
Siskiyou-
Solano2
Sonoma5
Stanislaus6
Sutter3
Tehama-
Trinity-
Tulare8
Tuolumne-
Ventura1
Yolo13
Yuba6
Total463

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

Weekly Reports

2017-10-132017 YTD SLEV Activity Map
2017-10-13Arbovirus Bulletin #28
2017-10-132017 YTD WNV Activity Map
2017-10-102017 US Arboviral Activity Update
2017-10-06Arbovirus Bulletin #27
2017-09-29Arbovirus Bulletin #25
2017-09-22Arbovirus Bulletin #25
2017-09-15Arbovirus Bulletin #24
2017-09-08Arbovirus Bulletin #23
2017-09-01Arbovirus Bulletin #22
- view full list of Weekly Reports -

Humans

2017-10-112003-2017 WNV Case Summary
2017-10-112017 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

2017-10-13Reported, Tested, Positive 2017
2017-10-13Positive Counts by City/County for 2017
2017-10-13Positive 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

2017-10-13AMOR - NJLT Week 40
2017-10-13AMOR - EVS Week 40
2017-10-13AMOR - GRAVID Week 40
2017-10-13AMOR - NJLT 5 Year Average Week 40
2017-10-06AMOR - NJLT Week 39
2017-10-06AMOR - EVS Week 39
2017-10-06AMOR - NJLT 5 Year Average Week 39
2017-10-06AMOR - GRAVID Week 39
2017-09-29AMOR - NJLT Week 38
2017-09-29AMOR - NJLT 5 Year Average Week 38
- 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 Oct 13, 2017201720165Y AVG
Counties453840
Human cases315326356
Dead birds46313251499
Mosquito samples329134482986
Sentinel chickens287324400
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2016 YTD activity -

WNV Reports

Weekly Report

10.13 Arbovirus Bulletin #28
10.13 2017 YTD SLEV Activity Map
10.13 2017 YTD WNV Activity Map

Humans

10.11 2017 Human WNV Incidence Report
10.11 2003-2017 WNV Case Summary
02.08 2016 Human WNV Incidence Report

Dead Birds

10.13Positive Counts by City/County for 2017
10.13Positive Species for 2017
10.13Reported, Tested, Positive 2017

Mosquitoes

10.13 AMOR - EVS Week 40
10.13 AMOR - GRAVID Week 40
10.13 AMOR - NJLT Week 40
- view report archives -