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

Case Counts by County

CountyDead birds
Alameda5
Alpine-
Amador-
Butte3
Calaveras-
Colusa-
Contra Costa5
Del Norte-
El Dorado-
Fresno3
Glenn-
Humboldt-
Imperial-
Inyo-
Kern-
Kings3
Lake3
Lassen-
Los Angeles50
Madera2
Marin2
Mariposa-
Mendocino-
Merced3
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange19
Placer11
Plumas-
Riverside4
Sacramento293
San Benito-
San Bernardino-
San Diego175
San Francisco-
San Joaquin20
San Luis Obispo-
San Mateo9
Santa Barbara-
Santa Clara48
Santa Cruz1
Shasta-
Sierra-
Siskiyou-
Solano1
Sonoma-
Stanislaus6
Sutter6
Tehama-
Trinity-
Tulare1
Tuolumne-
Ventura11
Yolo30
Yuba1
Total715

WNV Activity by County
Printable Version
2016 | 2015 | 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.

Having problems with mosquitoes?

Locate your local mosquito and vector control agency
Search by Zip Code




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

As of Jul 29, 2016201620155Y AVG
Counties343630
Human cases3108
Dead birds715303417
Mosquito samples14871058766
Sentinel chickens734542
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2015 YTD activity -

WNV Reports

Weekly Report

07.29 Arbovirus Bulletin #21
07.29 2016 YTD WNV Activity Map
07.22 Arbovirus Bulletin #20

Humans

03.21 2015 Human WNV Incidence Report
03.21 2003-2015 WNV Case Summary
03.09 2014 Human WNV Incidence Report

Dead Birds

07.29Positive Species for 2016
07.29Reported, Tested, Positive 2016
07.29Positive Counts by City/County for 2016

Mosquitoes

07.29 AMOR - EVS Week 29
07.29 AMOR - GRAVID Week 29
07.29 AMOR - NJLT Week 29
- view report archives -