2021 WNV Activity by County

(2021-04-16) - Source: http://westnile.ca.gov

Total Positive Counties: 0

CountyHuman CasesDead BirdsMosquito SamplesSentinel ChickensHorses
State Totals00000
Alameda-----
Alpine-----
Amador-----
Butte-----
Calaveras-----
Colusa-----
Contra Costa-----
Del Norte-----
El Dorado-----
Fresno-----
Glenn-----
Humboldt-----
Imperial-----
Inyo-----
Kern-----
Kings-----
Lake-----
Lassen-----
Los Angeles-----
Madera-----
Marin-----
Mariposa-----
Mendocino-----
Merced-----
Modoc-----
Mono-----
Monterey-----
Napa-----
Nevada-----
Orange-----
Placer-----
Plumas-----
Riverside-----
Sacramento-----
San Benito-----
San Bernardino-----
San Diego-----
San Francisco-----
San Joaquin-----
San Luis Obispo-----
San Mateo-----
Santa Barbara-----
Santa Clara-----
Santa Cruz-----
Shasta-----
Sierra-----
Siskiyou-----
Solano-----
Sonoma-----
Stanislaus-----
Sutter-----
Tehama-----
Trinity-----
Tulare-----
Tuolumne-----
Ventura-----
Yolo-----
Yuba-----
State Totals00000