2020 WNV Activity by County

(2020-09-27) - Source: http://westnile.ca.gov

Total Positive Counties: 32

CountyHuman CasesDead BirdsMosquito SamplesSentinel ChickensHorses
State Totals9126122959213
Alameda-2---
Alpine-----
Amador----1
Butte4328211
Calaveras-----
Colusa-----
Contra Costa217122-
Del Norte-----
El Dorado2----
Fresno65299--
Glenn1-321
Humboldt-----
Imperial--3--
Inyo-----
Kern--80--
Kings1-74-1
Lake--122-
Lassen-----
Los Angeles276631113-
Madera3-73--
Marin-1---
Mariposa-----
Mendocino-----
Merced4241141
Modoc-----
Mono-----
Monterey-----
Napa-12--
Nevada-----
Orange538227--
Placer1258--
Plumas-----
Riverside3260-2
Sacramento1811041-
San Benito-----
San Bernardino--12-1
San Diego1-2--
San Francisco-----
San Joaquin-4241-2
San Luis Obispo-----
San Mateo-----
Santa Barbara-----
Santa Clara-58--
Santa Cruz-----
Shasta--252-
Sierra-----
Siskiyou-----
Solano-181-
Sonoma-----
Stanislaus264345-3
Sutter1-2021-
Tehama---3-
Trinity-----
Tulare231719-
Tuolumne-----
Ventura-----
Yolo12474--
Yuba--21-
State Totals9126122959213