Case Counts by County

CountyDead birds
Alameda84
Alpine-
Amador-
Butte19
Calaveras-
Colusa4
Contra Costa36
Del Norte-
El Dorado3
Fresno9
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings2
Lake15
Lassen-
Los Angeles57
Madera5
Marin3
Mariposa-
Mendocino-
Merced1
Modoc-
Mono-
Monterey-
Napa12
Nevada-
Orange278
Placer38
Plumas-
Riverside1
Sacramento271
San Benito-
San Bernardino12
San Diego7
San Francisco-
San Joaquin45
San Luis Obispo-
San Mateo13
Santa Barbara-
Santa Clara821
Santa Cruz1
Shasta5
Sierra-
Siskiyou-
Solano32
Sonoma17
Stanislaus39
Sutter19
Tehama-
Trinity-
Tulare38
Tuolumne-
Ventura4
Yolo63
Yuba16
Total1979

WNV Activity by County
Printable Version
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 16, 2014201420135Y AVG
Counties384137
Human cases31115095
Dead birds19791022678
Mosquito samples285321731643
Sentinel chickens302330253
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

09.16 2014 YTD WNV Activity Map
09.12 Arbovirus Bulletin #30
09.09 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

09.16Reported, Tested, Positive 2014
09.16Positive Counts by City/County for 2014
09.16Positive Species for 2014

Mosquitoes

09.12 AMOR - EVS Week 36
09.12 AMOR - GRAVID Week 36
09.12 AMOR - NJLT Week 36
- view report archives -