Case Counts by County

CountyDead birds
Alameda12
Alpine-
Amador-
Butte30
Calaveras-
Colusa3
Contra Costa4
Del Norte-
El Dorado2
Fresno1
Glenn4
Humboldt2
Imperial-
Inyo-
Kern1
Kings3
Lake3
Lassen-
Los Angeles7
Madera1
Marin3
Mariposa-
Mendocino-
Merced1
Modoc-
Mono-
Monterey-
Napa5
Nevada8
Orange25
Placer8
Plumas-
Riverside34
Sacramento59
San Benito-
San Bernardino4
San Diego102
San Francisco-
San Joaquin10
San Luis Obispo-
San Mateo7
Santa Barbara-
Santa Clara83
Santa Cruz-
Shasta8
Sierra-
Siskiyou-
Solano7
Sonoma4
Stanislaus12
Sutter16
Tehama-
Trinity2
Tulare22
Tuolumne-
Ventura6
Yolo47
Yuba6
Total552

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

Weekly Reports

2015 YTD WNV Activity Map
2015 US Arboviral Activity Update
Arbovirus Bulletin #25
Arbovirus Bulletin #24
Arbovirus Bulletin #23
Arbovirus Bulletin #22
Arbovirus Bulletin #21
Arbovirus Bulletin #20
Arbovirus Bulletin #19
Arbovirus Bulletin #18
- view full list of Weekly Reports -

Humans

2015 Human WNV Incidence Report
2003-2015 WNV Case Summary
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
2011 Human WNV Case Linelist
2010 Human WNV Incidence Report
- view full list of Humans -

Dead Birds

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

Mosquitoes

AMOR - EVS Week 32
AMOR - NJLT 5 Year Average Week 32
AMOR - GRAVID Week 32
AMOR - NJLT Week 32
AMOR - NJLT Week 31
AMOR - EVS Week 31
AMOR - GRAVID Week 31
AMOR - NJLT 5 Year Average Week 31
AMOR - EVS Week 30
AMOR - GRAVID Week 30
- 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 -

Locate Your Local Mosquito and Vector Control Agency
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Compared to previous year and previous five-year average to date

As of Aug 26, 2015201520145Y AVG
Counties393632
Human cases579238
Dead birds5521573751
Mosquito samples176820371272
Sentinel chickens150129114
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2014 YTD activity -

WNV Reports

Weekly Report

08.26 2015 YTD WNV Activity Map
08.25 2015 US Arboviral Activity Update
08.21 Arbovirus Bulletin #25

Humans

08.19 2015 Human WNV Incidence Report
08.19 2003-2015 WNV Case Summary
03.09 2014 Human WNV Incidence Report

Dead Birds

08.26Positive Species for 2015
08.26Positive Counts by City/County for 2015
08.26Reported, Tested, Positive 2015

Mosquitoes

08.21 AMOR - EVS Week 32
08.21 AMOR - GRAVID Week 32
08.21 AMOR - NJLT Week 32
- view report archives -