Case Counts by County

CountyDead birds
Alameda-
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado-
Fresno-
Glenn-
Humboldt-
Imperial-
Inyo-
Kern-
Kings-
Lake3
Lassen-
Los Angeles2
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside-
Sacramento-
San Benito-
San Bernardino-
San Diego-
San Francisco-
San Joaquin1
San Luis Obispo-
San Mateo-
Santa Barbara-
Santa Clara6
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total12

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
Stop WNV in its tracks!
Don't Let The Summer Heat Make You Mosquito Meat!
Winter Rain Means Dump and Drain
WNV-Carrying Mosquitoes Still a Threat in the Fall
2008 California Mosquito-borne Virus Surveillance and Response Plan
Gov. Schwarzenegger Enhances Local Efforts to Fight West Nile Virus
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
Bulletin: A Kern County resident is the first WNV infection in California this year.
Be a West Nile Watcher

Press Releases

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

Locate Your Local Mosquito and Vector Control Agency
Search by Zip Code

Compared to 2013 YTD

As of Apr 18, 201420132014
Counties35
Human cases10
Dead birds212
Mosquito samples02
Sentinel chickens01
2013 YTD - Year to date corresponds to the same time last year.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

04.22 2013 YTD WNV Activity Map
04.18 Arbovirus Bulletin #9
04.18 2014 YTD WNV Activity Map

Humans

04.21 2013 Human WNV Incidence Report
04.21 2003-2013 WNV Case Summary
07.22 2012 Human WNV Surveillance Report

Dead Birds

04.18Reported, Tested, Positive 2014
04.18Positive Counts by City/County for 2014
04.18Positive Species for 2014

Mosquitoes

04.17 AMOR - EVS Week 15
04.17 AMOR - GRAVID Week 15
04.17 AMOR - NJLT Week 15

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 -