2019 WNV Activity by County

(2019-09-20) - Source: http://www.westnile.ca.gov

Total Positive Counties: 29

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals89120297889
Alameda----
Alpine----
Amador----
Butte4-4125
Calaveras----
Colusa---4
Contra Costa-1-1
Del Norte----
El Dorado----
Fresno3710470-
Glenn--11
Humboldt----
Imperial3-2-
Inyo----
Kern102126-
Kings--58-
Lake--6-
Lassen----
Los Angeles5184511
Madera1-69-
Marin----
Mariposa----
Mendocino----
Merced124514
Modoc----
Mono----
Monterey----
Napa----
Nevada----
Orange117111-
Placer-2508
Plumas----
Riverside4-515-
Sacramento-3670-
San Benito----
San Bernardino3346-
San Diego31--
San Francisco----
San Joaquin35256-
San Luis Obispo----
San Mateo----
Santa Barbara----
Santa Clara----
Santa Cruz----
Shasta--3-
Sierra----
Siskiyou----
Solano1-54
Sonoma----
Stanislaus51181-
Sutter--157
Tehama---2
Trinity----
Tulare81678610
Tuolumne-1--
Ventura--1-
Yolo-254-
Yuba-3222
State Totals89120297889