CA Dept. of Public Health UC Davis Arbovirus Research and Training Mosquito and Vector Control Assoc. of CA

Case Counts by County

CountyDead birds
Alameda7
Alpine-
Amador-
Butte18
Calaveras-
Colusa-
Contra Costa17
Del Norte-
El Dorado1
Fresno5
Glenn4
Humboldt-
Imperial-
Inyo-
Kern-
Kings3
Lake3
Lassen-
Los Angeles87
Madera5
Marin4
Mariposa-
Mendocino-
Merced5
Modoc-
Mono-
Monterey-
Napa-
Nevada2
Orange38
Placer18
Plumas-
Riverside12
Sacramento391
San Benito-
San Bernardino3
San Diego227
San Francisco-
San Joaquin32
San Luis Obispo-
San Mateo10
Santa Barbara-
Santa Clara71
Santa Cruz2
Shasta1
Sierra-
Siskiyou-
Solano5
Sonoma3
Stanislaus9
Sutter8
Tehama-
Trinity-
Tulare3
Tuolumne-
Ventura20
Yolo63
Yuba4
Total1081

WNV Activity by County
Printable Version
2016 | 2015 | 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.

Press Releases

CDPH Confirms First Human West Nile Virus Death of 2016
CDPH Reports Increased West Nile Virus Activity Statewide
CDPH Confirms First Human West Nile Virus Death of 2015
West Nile Virus Activity Increases Throughout California
California Sets Record for West Nile Virus Activity
West Nile Virus at Highest Level Ever in Mosquitoes
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
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

News

Reporting a Dead Bird Video
WNV Dead Bird Hotline Update
WNV Dead Bird Hotline Update
CDPH Reports First Human West Nile Virus Case This Summer
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

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Compared to previous year and previous five-year average to date

As of Aug 26, 2016201620155Y AVG
Counties364034
Human cases789768
Dead birds1081586816
Mosquito samples278020751718
Sentinel chickens213174167
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2015 YTD activity -

WNV Reports

Weekly Report

08.26 Arbovirus Bulletin #25
08.26 2016 YTD WNV Activity Map
08.23 2016 US Arboviral Activity Update

Humans

08.24 2016 Human WNV Incidence Report
08.24 2003-2016 WNV Case Summary
03.21 2015 Human WNV Incidence Report

Dead Birds

08.26Positive Species for 2016
08.26Reported, Tested, Positive 2016
08.26Positive Counts by City/County for 2016

Mosquitoes

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