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

Case Counts by County

CountyDead birds
Alameda11
Alpine-
Amador-
Butte21
Calaveras-
Colusa-
Contra Costa26
Del Norte-
El Dorado4
Fresno6
Glenn4
Humboldt-
Imperial-
Inyo-
Kern-
Kings4
Lake4
Lassen-
Los Angeles113
Madera5
Marin5
Mariposa-
Mendocino-
Merced5
Modoc-
Mono-
Monterey-
Napa1
Nevada2
Orange78
Placer28
Plumas-
Riverside14
Sacramento408
San Benito-
San Bernardino5
San Diego254
San Francisco-
San Joaquin35
San Luis Obispo-
San Mateo11
Santa Barbara-
Santa Clara85
Santa Cruz2
Shasta3
Sierra-
Siskiyou-
Solano11
Sonoma8
Stanislaus12
Sutter10
Tehama-
Trinity-
Tulare3
Tuolumne-
Ventura30
Yolo71
Yuba4
Total1283

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

Weekly Reports

2016 YTD WNV Activity Map
Arbovirus Bulletin #29
2016 US Arboviral Activity Update
Arbovirus Bulletin #28
Arbovirus Bulletin #27
Arbovirus Bulletin #26
Arbovirus Bulletin #25
Arbovirus Bulletin #24
Arbovirus Bulletin #23
Arbovirus Bulletin #22
- view full list of Weekly Reports -

Humans

2003-2016 WNV Case Summary
2016 Human WNV Incidence Report
2015 Human WNV Incidence Report
2014 Human WNV Incidence Report
2013 Human WNV Incidence Report
2012 Human WNV Surveillance Report
2012 Human WNV Incidence Report
2003-2011 WNV Case Summary by County
2011 Human WNV Incidence Report
2010 Human WNV Incidence Report
- view full list of Humans -

Dead Birds

Positive Species for 2016
Positive Counts by City/County for 2016
Reported, Tested, Positive 2016
Positive Species for 2015
Positive Counts by City/County for 2015
Reported, Tested, Positive 2015
Reported, Tested, Positive 2014
Positive Species for 2014
Positive Counts by City/County for 2014
Reported, Tested, Positive 2013
- view full list of Dead Birds -

Mosquitoes

AMOR - EVS Week 37
AMOR - NJLT Week 37
AMOR - GRAVID Week 37
AMOR - NJLT 5 Year Average Week 37
AMOR - NJLT 5 Year Average Week 36
AMOR - GRAVID Week 36
AMOR - EVS Week 36
AMOR - NJLT Week 36
AMOR - GRAVID Week 35
AMOR - NJLT 5 Year Average Week 35
- view full list of Mosquitoes -

Horses

2010 Confirmed Equine Cases Report
2010 Equine WNV Result Map
2009 Equine WNV Result Map
2009 Confirmed Equine Cases
2008 Confirmed Equine Cases
2007 Equine WNV Result Map

Reports and Analyses

2011 West Nile virus Activity in California
1999-2010 Total WNND cases by year
1999-2011 Reported WNV Disease Cases in Humans
2010 West Nile virus Activity in California
2009 WNV Activity by County
2008 WNV Activity Map
2008 WNV Activity by County
2004-2008 Comparative Line Graphs of West Nile Virus Activity
2007 YTD WNV Activity Map
2007 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 Sep 28, 2016201620155Y AVG
Counties374038
Human cases234233192
Dead birds128310161237
Mosquito samples324927692451
Sentinel chickens296314325
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2015 YTD activity -

WNV Reports

Weekly Report

09.28 2016 YTD WNV Activity Map
09.23 Arbovirus Bulletin #29
09.20 2016 US Arboviral Activity Update

Humans

09.14 2016 Human WNV Incidence Report
09.14 2003-2016 WNV Case Summary
03.21 2015 Human WNV Incidence Report

Dead Birds

09.28Positive Species for 2016
09.28Reported, Tested, Positive 2016
09.28Positive Counts by City/County for 2016

Mosquitoes

09.23 AMOR - EVS Week 37
09.23 AMOR - GRAVID Week 37
09.23 AMOR - NJLT Week 37
- view report archives -