Case Counts by County

CountyDead birds
Alameda20
Alpine-
Amador-
Butte42
Calaveras-
Colusa1
Contra Costa68
Del Norte-
El Dorado-
Fresno11
Glenn8
Humboldt1
Imperial-
Inyo-
Kern2
Kings12
Lake10
Lassen-
Los Angeles312
Madera7
Marin6
Mariposa-
Mendocino2
Merced38
Modoc-
Mono-
Monterey-
Napa2
Nevada6
Orange40
Placer39
Plumas-
Riverside22
Sacramento179
San Benito-
San Bernardino37
San Diego9
San Francisco-
San Joaquin34
San Luis Obispo1
San Mateo-
Santa Barbara-
Santa Clara77
Santa Cruz1
Shasta38
Sierra-
Siskiyou-
Solano13
Sonoma36
Stanislaus13
Sutter16
Tehama3
Trinity1
Tulare6
Tuolumne-
Ventura8
Yolo106
Yuba11
Total1238

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

Weekly Reports

Arbovirus Bulletin #39
2013 YTD WNV Activity Map
2013 US Arboviral Activity Update
Arbovirus Bulletin #38
Arbovirus Bulletin #37
Arbovirus Bulletin #36
Arbovirus Bulletin #35
Arbovirus Bulletin #34
Arbovirus Bulletin #33
Arbovirus Bulletin #32
- view full list of Weekly Reports -

Humans

2003-2013 WNV Case Summary
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 Case Linelist
2011 Human WNV Incidence Report
2010 Human WNV Case Linelist
2010 Human WNV Incidence Report
2009 Human WNV Case Linelist
- view full list of Humans -

Dead Birds

Reported, Tested, Positive 2013 YTD
Positive Species for 2013
Positive Counts by City/County for 2013
Positive Counts by City/County for 2012
Positive Species for 2012
Reported, Tested, Positive 2012
Positive Species for 2011
Reported, Tested, Positive 2011 YTD
Positive Counts by City/County for 2011
Positive Counts by City/County for 2010
- view full list of Dead Birds -

Mosquitoes

AMOR - GRAVID Week 44
AMOR - NJLT 5 Year Average Week 44
AMOR - NJLT Week 44
AMOR - EVS Week 44
AMOR - NJLT Week 43
AMOR - NJLT 5 Year Average Week 43
AMOR - GRAVID Week 43
AMOR - EVS Week 43
AMOR - NJLT Week 42
AMOR - GRAVID Week 42
- view full list of Mosquitoes -

Sentinel Chickens

Submission Data for 2/9/09 - 2/13/09
Submission Data for 12/8/08 - 12/12/08
Submission Data for 11/17/08 - 11/21/08
Submission Data for 11/10/08 - 11/14/08
Submission Data for 11/3/08 - 11/7/08
Submission Data for 10/27/08 - 10/31/08
Submission Data for 10/20/08 - 10/24/08
Submission Data for 10/13/08 - 10/17/08
Submission Data for 10/6/08 - 10/10/08
Submission Data for 9/29/08 - 10/3/08
- view full list of Sentinel Chickens -

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

Summary of WNV-Positive Surveillance Elements in CA 2006
2009 WNV Activity by County
2010 West Nile virus Activity in California
2011 West Nile virus Activity in California
Total WNND cases by year 1999-2010
Reported WNV Disease Cases in Humans
2008 WNV Activity by County
2008 WNV Activity Map
Comparative Line Graphs of West Nile Virus Activity 2004-2008
Arbovirus Bulletin #37
- view full list of Reports and Analyses -

Locate Your Local Mosquito and Vector Control Agency
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Compared to 2012 YTD

As of Dec 06, 201320122013
Counties4243
Human cases443364
Horses2213
Dead birds16421238
Mosquito samples28482528
Sentinel chickens540484
Squirrels238
2012 YTD - Year to date corresponds to the same time last year.

- view all 2012 YTD activity -

WNV Reports

Weekly Report

12.06 Arbovirus Bulletin #39
12.06 2013 YTD WNV Activity Map
12.03 2013 US Arboviral Activity Update

Humans

12.02 2013 Human WNV Incidence Report
12.02 2003-2013 WNV Case Summary
07.22 2012 Human WNV Surveillance Report

Dead Birds

12.06Positive Species for 2013
12.06Positive Counts by City/County for 2013
12.06Reported, Tested, Positive 2013 YTD

Mosquitoes

11.08 AMOR - EVS Week 44
11.08 AMOR - GRAVID Week 44
11.08 AMOR - NJLT Week 44

Horses

12.16 2010 Equine WNV Result Map
12.16 2010 Confirmed Equine Cases Report
05.26 2009 Equine WNV Result Map
- view report archives -