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

Case Counts by County

CountyDead birds
Alameda5
Alpine-
Amador-
Butte3
Calaveras-
Colusa-
Contra Costa5
Del Norte-
El Dorado-
Fresno3
Glenn-
Humboldt-
Imperial-
Inyo-
Kern-
Kings3
Lake3
Lassen-
Los Angeles50
Madera2
Marin2
Mariposa-
Mendocino-
Merced3
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange19
Placer11
Plumas-
Riverside4
Sacramento293
San Benito-
San Bernardino-
San Diego175
San Francisco-
San Joaquin20
San Luis Obispo-
San Mateo9
Santa Barbara-
Santa Clara48
Santa Cruz1
Shasta-
Sierra-
Siskiyou-
Solano1
Sonoma-
Stanislaus6
Sutter6
Tehama-
Trinity-
Tulare1
Tuolumne-
Ventura11
Yolo30
Yuba1
Total715

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

Weekly Reports

Arbovirus Bulletin #21
2016 YTD WNV Activity Map
Arbovirus Bulletin #20
Arbovirus Bulletin #19
Arbovirus Bulletin #18
2015 US Arboviral Activity Update
Arbovirus Bulletin #17
Arbovirus Bulletin #16
Arbovirus Bulletin #15
Arbovirus Bulletin #14
- 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 Counts by City/County for 2016
Positive Species 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 - GRAVID Week 29
AMOR - NJLT 5 Year Average Week 29
AMOR - NJLT Week 29
AMOR - EVS Week 29
AMOR - NJLT 5 Year Average Week 28
AMOR - EVS Week 28
AMOR - GRAVID Week 28
AMOR - NJLT Week 28
AMOR - NJLT Week 27
AMOR - NJLT 5 Year Average Week 27
- 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 Jul 29, 2016201620155Y AVG
Counties343630
Human cases3108
Dead birds715303417
Mosquito samples14871058766
Sentinel chickens734542
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2015 YTD activity -

WNV Reports

Weekly Report

07.29 Arbovirus Bulletin #21
07.29 2016 YTD WNV Activity Map
07.22 Arbovirus Bulletin #20

Humans

03.21 2015 Human WNV Incidence Report
03.21 2003-2015 WNV Case Summary
03.09 2014 Human WNV Incidence Report

Dead Birds

07.29Positive Species for 2016
07.29Reported, Tested, Positive 2016
07.29Positive Counts by City/County for 2016

Mosquitoes

07.29 AMOR - EVS Week 29
07.29 AMOR - GRAVID Week 29
07.29 AMOR - NJLT Week 29
- view report archives -