2018 WNV Activity by County

(2018-09-21) - Source: http://www.westnile.ca.gov

Total Positive Counties: 37

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals794301730112
Alameda-1611-
Alpine----
Amador1---
Butte634732
Calaveras----
Colusa---2
Contra Costa1111513
Del Norte----
El Dorado-2--
Fresno3-102-
Glenn2-4-
Humboldt11--
Imperial--1-
Inyo----
Kern5-45-
Kings--19-
Lake--41
Lassen----
Los Angeles119347
Madera2-48-
Marin----
Mariposa----
Mendocino----
Merced1-814
Modoc----
Mono----
Monterey----
Napa----
Nevada----
Orange1562-
Placer7402284
Plumas----
Riverside7534-
Sacramento12322884
San Benito---1
San Bernardino3-10-
San Diego--3-
San Francisco----
San Joaquin911459-
San Luis Obispo----
San Mateo-52-
Santa Barbara----
Santa Clara-4345
Santa Cruz-2--
Shasta1474
Sierra----
Siskiyou----
Solano--2-
Sonoma----
Stanislaus6199-
Sutter-42819
Tehama1---
Trinity----
Tulare1-69-
Tuolumne1---
Ventura1---
Yolo636894
Yuba1-82
State Totals794301730112