Case Counts by County

CountyDead birds
Alameda90
Alpine-
Amador-
Butte22
Calaveras-
Colusa4
Contra Costa42
Del Norte-
El Dorado5
Fresno9
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings3
Lake18
Lassen-
Los Angeles81
Madera5
Marin5
Mariposa-
Mendocino-
Merced7
Modoc-
Mono-
Monterey-
Napa12
Nevada-
Orange331
Placer39
Plumas-
Riverside1
Sacramento287
San Benito-
San Bernardino15
San Diego7
San Francisco-
San Joaquin50
San Luis Obispo-
San Mateo16
Santa Barbara-
Santa Clara878
Santa Cruz1
Shasta6
Sierra-
Siskiyou-
Solano33
Sonoma26
Stanislaus45
Sutter19
Tehama-
Trinity-
Tulare40
Tuolumne-
Ventura5
Yolo68
Yuba16
Total2195

WNV Activity by County
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2011 | 2010 | 2009
2008 | 2007

News

WNV in CA 2011

May 5, 2011

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

As of Oct 01, 2014201420135Y AVG
Counties384138
Human cases428205136
Dead birds21951144811
Mosquito samples304723791818
Sentinel chickens361404329
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

10.01 2014 YTD WNV Activity Map
09.30 2014 US Arboviral Activity Update
09.19 Arbovirus Bulletin #31

Humans

09.29 2014 Human WNV Incidence Report
09.29 2003-2014 WNV Case Summary
08.12 2013 Human WNV Incidence Report

Dead Birds

10.01Reported, Tested, Positive 2014
10.01Positive Counts by City/County for 2014
10.01Positive Species for 2014

Mosquitoes

09.26 Arbovirus Bulletin #32
09.26 AMOR - EVS Week 38
09.26 AMOR - GRAVID Week 38
- view report archives -