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

Case Counts by County

CountyDead birds
Alameda1
Alpine-
Amador-
Butte-
Calaveras-
Colusa-
Contra Costa-
Del Norte-
El Dorado-
Fresno4
Glenn-
Humboldt-
Imperial-
Inyo-
Kern-
Kings-
Lake-
Lassen-
Los Angeles12
Madera-
Marin-
Mariposa-
Mendocino-
Merced2
Modoc-
Mono-
Monterey-
Napa1
Nevada-
Orange4
Placer-
Plumas-
Riverside1
Sacramento42
San Benito-
San Bernardino-
San Diego-
San Francisco-
San Joaquin1
San Luis Obispo-
San Mateo-
Santa Barbara-
Santa Clara5
Santa Cruz-
Shasta-
Sierra-
Siskiyou-
Solano1
Sonoma-
Stanislaus4
Sutter-
Tehama-
Trinity-
Tulare1
Tuolumne-
Ventura-
Yolo2
Yuba-
Total81

WNV Activity by County
Printable Version
2020 | 2019 | 2018
2017 | 2016 | 2015
2014 | 2013 | 2012
2011 | 2010 | 2009
2008 | 2007

Educational Materials

Easy to Read Repellent Use Information in Spanish

May 8, 2007

Downloads


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

As of Aug 07, 2020202020195Y AVG
Counties272332
Human cases101024
Dead birds8158370
Mosquito samples67516441638
Sentinel chickens211069
YTD - Year to date corresponds to the same time last year or last five years.

- view all 2020 YTD activity -

WNV Reports

Weekly Report

08.07 2020 YTD SLEV Activity Map
08.07 2020 YTD WNV Activity Map
07.31 Arbobulletin #16

Humans

08.07 2020 Human WNV Incidence Report
08.07 2003-2020 WNV Case Summary
03.02 2019 Human WNV Incidence Report

Dead Birds

08.07Reported, Tested, Positive 2020
08.07Positive Species for 2020
08.07Positive Counts by City/County for 2020

Mosquitoes

10.04 AMOR - EVS Week 39
10.04 AMOR - GRAVID Week 39
10.04 AMOR - NJLT Week 39
- view report archives -