2017 WNV Activity by County

(2017-10-22) - Source: http://www.westnile.ca.gov

Total Positive Counties: 44

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals3614733304295
Alameda-2--
Alpine----
Amador----
Butte354731
Calaveras---1
Colusa-1--
Contra Costa21987
Del Norte----
El Dorado-2--
Fresno35167-
Glenn-2121
Humboldt-1--
Imperial3---
Inyo4-9-
Kern223152-
Kings1179-
Lake-4172
Lassen----
Los Angeles18793543137
Madera1162-
Marin-1--
Mariposa----
Mendocino----
Merced-14019
Modoc----
Mono----
Monterey-1--
Napa----
Nevada-1--
Orange3152262-
Placer-3595
Plumas----
Riverside2040194-
Sacramento1861532
San Benito---1
San Bernardino364529135
San Diego2359-
San Francisco11--
San Joaquin126242-
San Luis Obispo-2--
San Mateo-1--
Santa Barbara-1-4
Santa Clara-8--
Santa Cruz-1--
Shasta12-4
Sierra----
Siskiyou----
Solano-4711
Sonoma-51-
Stanislaus206196-
Sutter131622
Tehama1--4
Trinity----
Tulare48630-
Tuolumne----
Ventura113-
Yolo414871
Yuba-6188
State Totals3614733304295