Case Counts by County

CountyDead birds
Alameda1
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado-
Fresno-
Glenn-
Humboldt-
Imperial-
Inyo-
Kern-
Kings-
Lake-
Lassen-
Los Angeles-
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside-
Sacramento-
San Benito-
San Bernardino-
San Diego19
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo2
Santa Barbara-
Santa Clara9
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma2
Stanislaus1
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total34

WNV Activity by County
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2015 | 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 May 20, 2015201520145Y AVG
Counties1086
Human cases000
Dead birds34199
Mosquito samples1752
Sentinel chickens010
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2014 YTD activity -

WNV Reports

Weekly Report

05.20 2015 YTD WNV Activity Map
05.15 Arbovirus Bulletin #11
05.08 Arbovirus Bulletin #10

Humans

04.02 2003-2014 WNV Case Summary
03.09 2014 Human WNV Incidence Report
08.12 2013 Human WNV Incidence Report

Dead Birds

05.20Positive Species for 2015
05.20Positive Counts by City/County for 2015
05.20Reported, Tested, Positive 2015

Mosquitoes

05.22 AMOR - EVS Week 19
05.22 AMOR - GRAVID Week 19
05.22 AMOR - NJLT Week 19
- view report archives -