2016 WNV Activity by County
Year To Date (Weeks 1 - 32)

(2017-12-15) - Source: http://www.westnile.ca.gov

Total Positive Counties: 35

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals229142224135
Alameda-72-
Alpine----
Amador----
Butte-133525
Calaveras----
Colusa---6
Contra Costa-1243
Del Norte----
El Dorado----
Fresno34127-
Glenn-2118
Humboldt----
Imperial----
Inyo----
Kern4-55-
Kings-357-
Lake-318-
Lassen----
Los Angeles56418219
Madera-546-
Marin-3--
Mariposa----
Mendocino----
Merced-4723
Modoc----
Mono----
Monterey----
Napa--2-
Nevada-1--
Orange120168-
Placer-15862
Plumas----
Riverside-728-
Sacramento2358367-
San Benito----
San Bernardino--542
San Diego1209699
San Francisco----
San Joaquin127228-
San Luis Obispo----
San Mateo-104-
Santa Barbara----
Santa Clara-5510-
Santa Cruz-23-
Shasta-15-
Sierra----
Siskiyou----
Solano-351
Sonoma--1-
Stanislaus36182-
Sutter-66325
Tehama1--2
Trinity----
Tulare-2210-
Tuolumne----
Ventura-17--
Yolo-53180-
Yuba121510
State Totals229142224135