Case Counts by County

CountyDead birds
Alameda13
Alpine-
Amador-
Butte1
Calaveras-
Colusa1
Contra Costa18
Del Norte-
El Dorado1
Fresno6
Glenn1
Humboldt-
Imperial-
Inyo-
Kern2
Kings-
Lake5
Lassen-
Los Angeles7
Madera3
Marin2
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa1
Nevada-
Orange43
Placer10
Plumas-
Riverside-
Sacramento112
San Benito-
San Bernardino2
San Diego1
San Francisco-
San Joaquin19
San Luis Obispo-
San Mateo3
Santa Barbara-
Santa Clara429
Santa Cruz1
Shasta2
Sierra-
Siskiyou-
Solano26
Sonoma6
Stanislaus14
Sutter11
Tehama-
Trinity-
Tulare31
Tuolumne-
Ventura1
Yolo16
Yuba3
Total791

WNV Activity by County
Printable Version
2014 | 2013 | 2012
2011 | 2010 | 2009
2008 | 2007
All media inquiries, including requests for interviews, should be directed to the California Department of Public Health, Office of Public Affairs at 916-440-7259 or via email at CDPHPress@cdph.ca.gov.

News

WNV Dead Bird Hotline Update
CDPH Reports First Human West Nile Virus Case This Summer
Reporting a Dead Bird Video
Climate Change May Mean More Mosquitoes -- And Diseases
Mosquito Control Matters video (MVCAC)
CDPH Reports First Human West Nile Virus Case of 2011
WNV in CA 2011
CDPH REPORTS FIRST HUMAN WEST NILE VIRUS FATALITY OF 2010
CDPH REPORTS FIRST HUMAN WEST NILE VIRUS CASES OF 2010
At the Twilight's Last Gleam - Be Sure Repellent is on Your TEAM!
Summer is right around the corner
Don't Let The Summer Heat Make You Mosquito Meat!
Winter Rain Means Dump and Drain
Gov. Schwarzenegger Declares State of Emergency in Counties Hit Hardest by West Nile Virus
Rise in Cases of West Nile May Portend an Epidemic (NY Times)
West Nile Virus Activity Increases in California

Press Releases

CDPH Reports First Human West Nile Virus Infections This Season
First California Fatality from West Nile Virus in 2012
CDPH Reports First Human West Nile Virus Case of 2012
First Two California Fatalities From West Nile Virus in 2011
CDPH REPORTS FIRST CONFIRMED HUMAN WEST NILE VIRUS FATALITIES OF 2009
CALIFORNIA DEPARTMENT OF PUBLIC HEALTH ANNOUNCES FIRST DEATH FROM WEST NILE VIRUS IN 2008
First Confirmed Case of West Nile Virus in Horses for 2008
CALIFORNIA DEPARTMENT OF PUBLIC HEALTH ANNOUNCES FIRST CONFIRMED HUMAN WEST NILE VIRUS CASE IN 2008
CALIFORNIA DEPARTMENT OF PUBLIC HEALTH REMINDS CALIFORNIANS TO PROTECT THEMSELVES FROM MOSQUITOES THAT CARRY WNV
Governor Schwarzenegger Orders Enhancements to Fight West Nile Virus
Gov. Schwarzenegger Deploys Additional Resources to Fight West Nile Virus in Wetland Wildlife Areas
Gov. Schwarzenegger Announces Additional Emergency Funding to Fight West Nile Virus, Totals More Than $1.3 Million This Week
Gov. Schwarzenegger Announces Release of Emergency Funding to Fight West Nile Virus
CALIFORNIA DEPARTMENT OF PUBLIC HEALTH ANNOUNCES FIFTH DEATH THIS YEAR DUE TO WEST NILE VIRUS
CALIFORNIA DEPARTMENT OF PUBLIC HEALTH ANNOUNCES THIRD AND FOURTH DEATHS DUE TO WEST NILE VIRUS
CALIFORNIA DEPARTMENT OF PUBLIC HEALTH ANNOUNCES SECOND DEATH FROM WEST NILE VIRUS IN 2007
OFICIAL ESTATAL DE SALUD ANUNCIA LA PRIMER MUERTE EN CALIFORNIA A CONSECUENCIA DEL VIRUS DEL NILO OCCIDENTAL
CALIFORNIA DEPARTMENT OF PUBLIC HEALTH ANNOUNCES FIRST DEATH FROM WEST NILE VIRUS IN 2007
STATE HEALTH OFFICER ANNOUNCES FIRST CONFIRMED HUMAN CASE OF WEST NILE VIRUS IN CALIFORNIA THIS YEAR
EARLY ONSET OF WARM WEATHER TRIGGERS AN EARLY WEST NILE VIRUS SEASON

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Compared to 2013 YTD

As of Jul 23, 201420132014
Counties3234
Human cases415
Dead birds325791
Mosquito samples555771
Sentinel chickens2714
2013 YTD - Year to date corresponds to the same time last year.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

07.23 2014 YTD WNV Activity Map
07.18 Arbovirus Bulletin #22
07.15 2014 US Arboviral Activity Update

Humans

07.21 2014 Human WNV Incidence Report
07.21 2003-2014 WNV Case Summary
04.21 2013 Human WNV Incidence Report

Dead Birds

07.23Reported, Tested, Positive 2014
07.23Positive Counts by City/County for 2014
07.23Positive Species for 2014

Mosquitoes

07.18 AMOR - EVS Week 28
07.18 AMOR - GRAVID Week 28
07.18 AMOR - NjLT Week 28

Horses

12.16 2010 Equine WNV Result Map
12.16 2010 Confirmed Equine Cases Report
05.26 2009 Equine WNV Result Map
- view report archives -