Case Counts by County

CountyDead birds
Alameda96
Alpine-
Amador-
Butte22
Calaveras-
Colusa4
Contra Costa44
Del Norte-
El Dorado7
Fresno9
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings3
Lake18
Lassen-
Los Angeles99
Madera5
Marin6
Mariposa-
Mendocino-
Merced8
Modoc-
Mono-
Monterey-
Napa12
Nevada-
Orange431
Placer40
Plumas-
Riverside1
Sacramento294
San Benito-
San Bernardino17
San Diego39
San Francisco-
San Joaquin53
San Luis Obispo-
San Mateo21
Santa Barbara2
Santa Clara925
Santa Cruz1
Shasta6
Sierra-
Siskiyou-
Solano33
Sonoma37
Stanislaus47
Sutter19
Tehama-
Trinity-
Tulare40
Tuolumne-
Ventura7
Yolo71
Yuba16
Total2442

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 Dec 22, 2014201420135Y AVG
Counties404431
Human cases798375223
Dead birds24421251799
Mosquito samples334025281754
Sentinel chickens443485339
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

01.13 2014 US Arboviral Activity Update
01.09 Arbovirus Bulletin #1
01.05 2014 YTD WNV Activity Map

Humans

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

Dead Birds

01.12Reported, Tested, Positive 2014
01.12Positive Counts by City/County for 2014
01.12Positive Species for 2014

Mosquitoes

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