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

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-
Lake-
Lassen-
Los Angeles-
Madera-
Marin-
Mariposa-
Mendocino-
Merced-
Modoc-
Mono-
Monterey-
Napa-
Nevada-
Orange-
Placer-
Plumas-
Riverside-
Sacramento-
San Benito-
San Bernardino-
San Diego-
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo1
Santa Barbara-
Santa Clara2
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total3

WNV Activity by County
Printable Version
2018 | 2017 | 2016 | 2015 | 2014
2013 | 2012 | 2011
2010 | 2009 | 2008
2007

Special Reports

2004 West Nile Virus Prevention, Surveillance, and Control Workshop

Slide Presentations
Dec 9, 2004

Please cite presentation authors and the "West Nile Virus Prevention, Surveillance, and Control Workshop" when using these materials.

Please note: Data and analyses discussed in these presentations were current when presented. Data collection and analyses are ongoing in many cases, therefore updates may be forthcoming elsewhere on this web site through publications such as CDHS Arbovirus Bulletins, Adult Mosquito Occurrence Reports, or other venues. The workshop presentations will not be updated.

Downloads


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 Feb 23, 2018201820175Y AVG
Counties232
Human cases000
Dead birds332
Mosquito samples000
Sentinel chickens000
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2017 YTD activity -

WNV Reports

Weekly Report

02.23 2018 YTD WNV Activity Map
02.16 2018 YTD SLEV Activity Map
02.02 2017 YTD WNV Activity Map

Humans

02.02 2017 Human WNV Incidence Report
02.02 2003-2017 WNV Case Summary
02.08 2016 Human WNV Incidence Report

Dead Birds

02.23Reported, Tested, Positive 2018
02.23Positive Species for 2018
02.23Positive Counts by City/County for 2018

Mosquitoes

11.09 AMOR - EVS Week 44
11.09 AMOR - GRAVID Week 44
11.09 AMOR - NJLT Week 44
- view report archives -