2018 WNV Activity by County

(2018-11-12) - Source: http://www.westnile.ca.gov

Total Positive Counties: 41

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals1744971960158
Alameda-2015-
Alpine----
Amador1---
Butte1044834
Calaveras----
Colusa---6
Contra Costa3131716
Del Norte----
El Dorado-2--
Fresno5-119-
Glenn2-4-
Humboldt11--
Imperial--1-
Inyo----
Kern8148-
Kings--22-
Lake1-41
Lassen----
Los Angeles40197228
Madera3-55-
Marin----
Mariposa----
Mendocino----
Merced2-1216
Modoc----
Mono----
Monterey1---
Napa1---
Nevada1---
Orange81596-
Placer9442304
Plumas----
Riverside13636-
Sacramento72413005
San Benito---1
San Bernardino5-12-
San Diego113-
San Francisco----
San Joaquin1216533-
San Luis Obispo----
San Mateo-52-
Santa Barbara----
Santa Clara15558
Santa Cruz-2--
Shasta1584
Sierra----
Siskiyou----
Solano--37
Sonoma--1-
Stanislaus141111-
Sutter142820
Tehama1--1
Trinity----
Tulare7-77-
Tuolumne11--
Ventura2---
Yolo1041905
Yuba2-82
State Totals1744971960158