Case Counts by County

CountyDead birds
Alameda86
Alpine-
Amador-
Butte20
Calaveras-
Colusa4
Contra Costa38
Del Norte-
El Dorado4
Fresno9
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings3
Lake18
Lassen-
Los Angeles60
Madera5
Marin3
Mariposa-
Mendocino-
Merced7
Modoc-
Mono-
Monterey-
Napa12
Nevada-
Orange306
Placer38
Plumas-
Riverside1
Sacramento275
San Benito-
San Bernardino13
San Diego7
San Francisco-
San Joaquin47
San Luis Obispo-
San Mateo14
Santa Barbara-
Santa Clara852
Santa Cruz1
Shasta5
Sierra-
Siskiyou-
Solano32
Sonoma20
Stanislaus43
Sutter19
Tehama-
Trinity-
Tulare40
Tuolumne-
Ventura5
Yolo67
Yuba16
Total2079

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

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

As of Sep 19, 2014201420135Y AVG
Counties384137
Human cases31115095
Dead birds20791067727
Mosquito samples295223141749
Sentinel chickens328374301
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

09.19 Arbovirus Bulletin #31
09.19 2014 YTD WNV Activity Map
09.16 2014 US Arboviral Activity Update

Humans

09.15 2014 Human WNV Incidence Report
09.15 2003-2014 WNV Case Summary
08.12 2013 Human WNV Incidence Report

Dead Birds

09.19Reported, Tested, Positive 2014
09.19Positive Counts by City/County for 2014
09.19Positive Species for 2014

Mosquitoes

09.18 AMOR - EVS Week 37
09.18 AMOR - GRAVID Week 37
09.18 AMOR - NJLT Week 37
- view report archives -