Case Counts by County

CountyDead birds
Alameda1
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado-
Fresno-
Glenn-
Humboldt-
Imperial-
Inyo-
Kern-
Kings-
Lake-
Lassen-
Los Angeles-
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside-
Sacramento-
San Benito-
San Bernardino-
San Diego-
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo-
Santa Barbara-
Santa Clara3
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total4

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

Weekly Reports

2015 YTD WNV Activity Map
Arbovirus Bulletin #3
Arbovirus Bulletin #29
2014 US Arboviral Activity Update
Arbovirus Bulletin #1
2014 YTD WNV Activity Map
Arbovirus Bulletin #42
Arbovirus Bulletin #41
Arbovirus Bulletin #40
Arbovirus Bulletin #39
- view full list of Weekly Reports -

Humans

2003-2014 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 Case Linelist
2010 Human WNV Incidence Report
- view full list of Humans -

Dead Birds

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

Mosquitoes

AMOR - NJLT 5 Year Average Week 44
AMOR - GRAVID Week 44
AMOR - EVS Week 44
AMOR - NJLT Week 44
AMOR - NJLT 5 Year Average Week 43
AMOR - NJLT Week 43
AMOR - GRAVID Week 43
AMOR - EVS Week 43
AMOR - GRAVID Week 42
AMOR - EVS Week 42
- 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
Search by Zip Code

Compared to previous year and previous five-year average to date

As of Mar 26, 2015201520145Y AVG
Counties232
Human cases000
Dead birds473
Mosquito samples000
Sentinel chickens010
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2014 YTD activity -

WNV Reports

Weekly Report

03.25 2015 YTD WNV Activity Map
03.20 Arbovirus Bulletin #3
03.13 Arbovirus Bulletin #29

Humans

01.29 2003-2014 WNV Case Summary
01.12 2014 Human WNV Incidence Report
08.12 2013 Human WNV Incidence Report

Dead Birds

03.25Positive Species for 2015
03.25Positive Counts by City/County for 2015
03.25Reported, Tested, Positive 2015

Mosquitoes

11.07 AMOR - EVS Week 44
11.07 AMOR - GRAVID Week 44
11.07 AMOR - NJLT Week 44
- view report archives -