2016 WNV Activity by County

(2018-10-23) - Source: http://www.westnile.ca.gov

Total Positive Counties: 39

CountyHuman CasesHorsesDead BirdsMosquito SamplesSentinel Chickens
State Totals442013523528343
Alameda--112-
Alpine-----
Amador1----
Butte21-224838
Calaveras-----
Colusa2---9
Contra Costa4-33115
Del Norte-----
El Dorado1-4--
Fresno14-6185-
Glenn6-41110
Humboldt-----
Imperial---1-
Inyo-----
Kern17--80-
Kings8-4118-
Lake1-5395
Lassen-----
Los Angeles151-124436126
Madera6-5101-
Marin--5--
Mariposa-----
Mendocino-----
Merced--51335
Modoc-----
Mono-----
Monterey1----
Napa--14-
Nevada--2-1
Orange32-91444-
Placer7-301037
Plumas-----
Riverside11-1632-
Sacramento25-4114553
San Benito-----
San Bernardino8-58223
San Diego20-264999
San Francisco-----
San Joaquin13-37350-
San Luis Obispo-----
San Mateo--155-
Santa Barbara-----
Santa Clara1-89131
Santa Cruz--23-
Shasta1-3123
Sierra-----
Siskiyou-----
Solano4-131610
Sonoma--82-
Stanislaus26-14258-
Sutter12-106833
Tehama5---8
Trinity-----
Tulare10-3260-
Tuolumne-----
Ventura7-34--
Yolo16-722594
Yuba11-41813
State Totals442013523528343