2014 WNV Activity by County

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

Total Positive Counties: 40

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals80124423340443
Alameda196161
Alpine----
Amador----
Butte24224037
Calaveras----
Colusa3419
Contra Costa5442515
Del Norte----
El Dorado-7--
Fresno439138-
Glenn10489
Humboldt-2--
Imperial1---
Inyo----
Kern113111-
Kings43150-
Lake118715
Lassen----
Los Angeles25399356146
Madera3537-
Marin-63-
Mariposa----
Mendocino1---
Merced181111
Modoc----
Mono----
Monterey----
Napa-12--
Nevada---2
Orange263431499-
Placer74077-
Plumas----
Riverside1419143
Sacramento1029448710
San Benito----
San Bernardino21179732
San Diego113912
San Francisco----
San Joaquin953239-
San Luis Obispo----
San Mateo-2115-
Santa Barbara-2--
Santa Clara10925305
Santa Cruz-1--
Shasta263312
Sierra----
Siskiyou----
Solano5331123
Sonoma-3793
Stanislaus334717612
Sutter8195231
Tehama4--13
Trinity----
Tulare21403114
Tuolumne----
Ventura17--
Yolo15712219
Yuba616249
State Totals80124423340443