Case Counts by County

CountyDead birds
Alameda-
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado-
Fresno-
Glenn-
Humboldt-
Imperial-
Inyo-
Kern-
Kings-
Lake3
Lassen-
Los Angeles2
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside-
Sacramento-
San Benito-
San Bernardino-
San Diego-
San Francisco-
San Joaquin1
San Luis Obispo-
San Mateo-
Santa Barbara-
Santa Clara6
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total12

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

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
2007 YTD WNV Activity Map
2007 WNV Activity by County
2003-2007 WNV Activity Summary
2006 West Nile Virus Summary Presentation
2006 West Nile Activity in California
2005 West Nile Virus Summary Presentation
2005 West Nile Activity in California
2004 West Nile Activity in California
2004 West Nile Virus Summary Presentation
Turn around Time Analysis
2004 WNV Agency Survey Report
DYCAST Model PowerPoint folder (zipped, 3.9 MB)
2003 West Nile Activity in California

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Compared to 2013 YTD

As of Apr 11, 201420132014
Counties34
Human cases10
Dead birds212
Mosquito samples00
Sentinel chickens01
2013 YTD - Year to date corresponds to the same time last year.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

04.11 Arbovirus Bulletin #8
04.11 2014 YTD WNV Activity Map
04.05 Arbovirus Bulletin #7

Humans

01.27 2013 Human WNV Incidence Report
01.27 2003-2013 WNV Case Summary
07.22 2012 Human WNV Surveillance Report

Dead Birds

04.11Reported, Tested, Positive 2014
04.11Positive Counts by City/County for 2014
04.11Positive Species for 2014

Mosquitoes

04.11 AMOR - EVS Week 14
04.11 AMOR - GRAVID Week 14
04.11 AMOR - NJLT Week 14

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 -