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 Diego1
San Francisco-
San Joaquin-
San Luis Obispo-
San Mateo-
Santa Barbara-
Santa Clara-
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano-
Sonoma-
Stanislaus-
Sutter-
Tehama-
Trinity-
Tulare-
Tuolumne-
Ventura-
Yolo-
Yuba-
Total1

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

News

WNV Dead Bird Hotline Update

Apr 20, 2016

The West Nile virus and Dead Bird Hotline is staffed with live operators from 8AM to 4:30PM, Monday through Friday (beginning in late May we will also be staffed on Sundays). Call the hotline at 1-877-WNV-BIRD to report a dead bird. Or fill out an online report form here:

Report a Dead Bird

Hotline operators will determine if the bird meets criteria for pickup and testing They will arrange for suitable dead birds to be picked up by a local vector control or public health agency for West Nile virus testing. Dead bird reports are very important because they are usually the first indication that the virus is active in an area, and this allows CDPH and local agencies to monitor the virus and implement control measures throughout the year.

Thank you for your report!

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 May 10, 2019201920185Y AVG
Counties438
Human cases000
Dead birds1412
Mosquito samples417
Sentinel chickens000
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2019 YTD activity -

WNV Reports

Weekly Report

05.17 Arbovirus Bulletin #7
05.17 2019 YTD WNV Activity Map
05.16 2018 YTD WNV Activity Map

Humans

04.03 2018 Human WNV Incidence Report
04.03 2003-2018 WNV Case Summary
03.29 2017 Human WNV Incidence Report

Dead Birds

05.17Positive Counts by City/County for 2019
05.17Positive Species for 2019
05.17Reported, Tested, Positive 2019

Mosquitoes

05.17 AMOR - EVS Week 19
05.17 AMOR - GRAVID Week 19
05.17 AMOR - NJLT Week 19
- view report archives -