Case Counts by County

CountyDead birds
Alameda64
Alpine-
Amador-
Butte18
Calaveras-
Colusa4
Contra Costa30
Del Norte-
El Dorado1
Fresno8
Glenn4
Humboldt2
Imperial-
Inyo-
Kern3
Kings2
Lake15
Lassen-
Los Angeles35
Madera4
Marin3
Mariposa-
Mendocino-
Merced1
Modoc-
Mono-
Monterey-
Napa9
Nevada-
Orange228
Placer27
Plumas-
Riverside-
Sacramento238
San Benito-
San Bernardino9
San Diego7
San Francisco-
San Joaquin40
San Luis Obispo-
San Mateo9
Santa Barbara-
Santa Clara769
Santa Cruz1
Shasta3
Sierra-
Siskiyou-
Solano32
Sonoma15
Stanislaus31
Sutter19
Tehama-
Trinity-
Tulare38
Tuolumne-
Ventura2
Yolo46
Yuba16
Total1733

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 Fatalities This Summer
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 previous year and previous five-year average to date

As of Aug 29, 2014201420135Y AVG
Counties364134
Human cases1298646
Dead birds1733907572
Mosquito samples248518541374
Sentinel chickens242267177
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2013 YTD activity -

WNV Reports

Weekly Report

08.29 Arbovirus Bulletin #28
08.29 2014 YTD WNV Activity Map
08.26 2014 US Arboviral Activity Update

Humans

08.25 2014 Human WNV Incidence Report
08.25 2003-2014 WNV Case Summary
08.12 2013 Human WNV Incidence Report

Dead Birds

08.29Reported, Tested, Positive 2014
08.29Positive Counts by City/County for 2014
08.29Positive Species for 2014

Mosquitoes

08.22 AMOR - EVS Week 33
08.22 AMOR - GRAVID Week 33
08.22 AMOR - NJLT Week 33
- view report archives -