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
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2009 | 2008 | 2007

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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 -