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

Case Counts by County

CountyDead birds
Alameda2
Alpine-
Amador-
Butte5
Calaveras-
Colusa1
Contra Costa19
Del Norte-
El Dorado2
Fresno5
Glenn2
Humboldt1
Imperial-
Inyo-
Kern3
Kings1
Lake5
Lassen-
Los Angeles100
Madera1
Marin1
Mariposa-
Mendocino-
Merced1
Modoc-
Mono-
Monterey1
Napa-
Nevada1
Orange55
Placer4
Plumas-
Riverside41
Sacramento86
San Benito-
San Bernardino45
San Diego41
San Francisco1
San Joaquin7
San Luis Obispo6
San Mateo1
Santa Barbara1
Santa Clara12
Santa Cruz1
Shasta2
Sierra-
Siskiyou-
Solano4
Sonoma5
Stanislaus6
Sutter3
Tehama-
Trinity-
Tulare8
Tuolumne-
Ventura2
Yolo14
Yuba6
Total502

WNV Activity by County
Printable Version
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!

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

As of Nov 17, 2017201720165Y AVG
Counties473841
Human cases465395504
Dead birds50213461592
Mosquito samples336035063104
Sentinel chickens304343448
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2016 YTD activity -

WNV Reports

Weekly Report

11.17 Arbovirus Bulletin #33
11.17 2017 YTD WNV Activity Map
11.14 2017 US Arboviral Activity Update

Humans

11.15 2017 Human WNV Incidence Report
11.15 2003-2017 WNV Case Summary
02.08 2016 Human WNV Incidence Report

Dead Birds

11.17Positive Counts by City/County for 2017
11.17Positive Species for 2017
11.17Reported, Tested, Positive 2017

Mosquitoes

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