Case Counts by County

CountyDead birds
Alameda13
Alpine-
Amador-
Butte37
Calaveras-
Colusa3
Contra Costa7
Del Norte-
El Dorado2
Fresno3
Glenn4
Humboldt2
Imperial-
Inyo-
Kern1
Kings3
Lake5
Lassen-
Los Angeles12
Madera1
Marin3
Mariposa-
Mendocino-
Merced2
Modoc-
Mono-
Monterey-
Napa7
Nevada9
Orange27
Placer13
Plumas-
Riverside44
Sacramento75
San Benito-
San Bernardino13
San Diego129
San Francisco-
San Joaquin12
San Luis Obispo-
San Mateo10
Santa Barbara-
Santa Clara106
Santa Cruz-
Shasta13
Sierra-
Siskiyou-
Solano8
Sonoma5
Stanislaus13
Sutter16
Tehama-
Trinity2
Tulare22
Tuolumne-
Ventura8
Yolo49
Yuba6
Total685

WNV Activity by County
Printable Version
2015 | 2014 | 2013
2012 | 2011 | 2010
2009 | 2008 | 2007

News

West Nile virus Awareness week is April 22 - 28! Do You Know How to Fight the Bite?

Jan 2, 2003

West Nile Virus and Mosquito and Vector Control Awareness Week is April 22-28! West Nile Virus can easily be prevented -- check out this video with CDPH's Dr. Vicki Kramer for tips on protecting yourself and your family.

Locate Your Local Mosquito and Vector Control Agency
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Compared to previous year and previous five-year average to date

As of Sep 04, 2015201520145Y AVG
Counties403734
Human cases10817876
Dead birds6851736841
Mosquito samples230324841702
Sentinel chickens193242191
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2014 YTD activity -

WNV Reports

Weekly Report

09.04 Arbovirus Bulletin #27
09.04 2015 YTD WNV Activity Map
09.01 2015 US Arboviral Activity Update

Humans

09.02 2015 Human WNV Incidence Report
09.02 2003-2015 WNV Case Summary
03.09 2014 Human WNV Incidence Report

Dead Birds

09.04Positive Species for 2015
09.04Positive Counts by City/County for 2015
09.04Reported, Tested, Positive 2015

Mosquitoes

09.04 AMOR - EVS Week 34
09.04 AMOR - GRAVID Week 34
09.04 AMOR - NJLT Week 34
- view report archives -