Case Counts by County

CountyDead birds
Alameda89
Alpine-
Amador-
Butte20
Calaveras-
Colusa4
Contra Costa40
Del Norte-
El Dorado5
Fresno9
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings3
Lake18
Lassen-
Los Angeles70
Madera5
Marin5
Mariposa-
Mendocino-
Merced7
Modoc-
Mono-
Monterey-
Napa12
Nevada-
Orange326
Placer39
Plumas-
Riverside1
Sacramento285
San Benito-
San Bernardino13
San Diego7
San Francisco-
San Joaquin50
San Luis Obispo-
San Mateo16
Santa Barbara-
Santa Clara863
Santa Cruz1
Shasta6
Sierra-
Siskiyou-
Solano33
Sonoma26
Stanislaus45
Sutter19
Tehama-
Trinity-
Tulare40
Tuolumne-
Ventura5
Yolo68
Yuba16
Total2155

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

Educational Materials

West Nile Virus Brochure: Three Panels in 4 Colors

Plain Language
Jul 13, 2010


Fight the Bite: Protect Yourself and Your Family

Dimensions: 8.5 x 11 in.

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

As of Sep 30, 2014201420135Y AVG
Counties384138
Human cases428205136
Dead birds21551102770
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

09.30 2014 YTD WNV Activity Map
09.23 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

09.30Reported, Tested, Positive 2014
09.30Positive Counts by City/County for 2014
09.30Positive Species for 2014

Mosquitoes

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