Case Counts by County

CountyDead birds
Alameda62
Alpine-
Amador-
Butte18
Calaveras-
Colusa4
Contra Costa28
Del Norte-
El Dorado1
Fresno8
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings2
Lake14
Lassen-
Los Angeles31
Madera4
Marin3
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa9
Nevada-
Orange209
Placer23
Plumas-
Riverside-
Sacramento238
San Benito-
San Bernardino8
San Diego4
San Francisco-
San Joaquin36
San Luis Obispo-
San Mateo8
Santa Barbara-
Santa Clara730
Santa Cruz1
Shasta2
Sierra-
Siskiyou-
Solano31
Sonoma13
Stanislaus31
Sutter19
Tehama-
Trinity-
Tulare38
Tuolumne-
Ventura2
Yolo46
Yuba11
Total1643

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

News

Reporting a Dead Bird Video

Jul 1, 2013

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

As of Aug 27, 2014201420135Y AVG
Counties364134
Human cases1298646
Dead birds1643907572
Mosquito samples230515621175
Sentinel chickens184231142
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

08.27 2014 YTD WNV Activity Map
08.26 2014 US Arboviral Activity Update
08.22 Arbovirus Bulletin #27

Humans

08.25 2014 Human WNV Incidence Report
08.25 2003-2014 WNV Case Summary
08.12 2013 Human WNV Incidence Report

Dead Birds

08.27Reported, Tested, Positive 2014
08.27Positive Counts by City/County for 2014
08.27Positive Species for 2014

Mosquitoes

08.22 AMOR - EVS Week 33
08.22 AMOR - GRAVID Week 33
08.22 AMOR - NJLT Week 33
- view report archives -