2019 WNV Activity by County

(2019-02-23) - Source: http://www.westnile.ca.gov

Total Positive Counties: 41

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals2155011963163
Alameda-2015-
Alpine----
Amador1---
Butte1244837
Calaveras----
Colusa---6
Contra Costa4131716
Del Norte----
El Dorado-2--
Fresno13-119-
Glenn2-4-
Humboldt11--
Imperial--1-
Inyo----
Kern13148-
Kings--22-
Lake1-41
Lassen----
Los Angeles43197530
Madera4-55-
Marin----
Mariposa----
Mendocino----
Merced2-1216
Modoc----
Mono----
Monterey1---
Napa1---
Nevada1---
Orange91896-
Placer9442304
Plumas----
Riverside15636-
Sacramento152413005
San Benito---1
San Bernardino8-12-
San Diego213-
San Francisco----
San Joaquin1416533-
San Luis Obispo----
San Mateo-52-
Santa Barbara----
Santa Clara15658
Santa Cruz-2--
Shasta1584
Sierra----
Siskiyou----
Solano--37
Sonoma--1-
Stanislaus151111-
Sutter142820
Tehama2--1
Trinity----
Tulare8-77-
Tuolumne11--
Ventura2---
Yolo1141905
Yuba2-82
State Totals2155011963163