2018 WNV Activity by County

(2018-12-18) - Source: http://www.westnile.ca.gov

Total Positive Counties: 41

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals2035001963163
Alameda-2015-
Alpine----
Amador1---
Butte1144837
Calaveras----
Colusa---6
Contra Costa4131716
Del Norte----
El Dorado-2--
Fresno11-119-
Glenn2-4-
Humboldt11--
Imperial--1-
Inyo----
Kern12148-
Kings--22-
Lake1-41
Lassen----
Los Angeles43197530
Madera3-55-
Marin----
Mariposa----
Mendocino----
Merced2-1216
Modoc----
Mono----
Monterey1---
Napa1---
Nevada1---
Orange91796-
Placer9442304
Plumas----
Riverside14636-
Sacramento132413005
San Benito---1
San Bernardino7-12-
San Diego113-
San Francisco----
San Joaquin1316533-
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---
Yolo1041905
Yuba2-82
State Totals2035001963163