2015 WNV Activity by County

(2017-07-21) - Source: http://www.westnile.ca.gov

Total Positive Counties: 41

CountyHuman CasesDead BirdsMosquito SamplesSentinel Chickens
State Totals78213493329449
Alameda-1916-
Alpine----
Amador----
Butte53389437
Calaveras----
Colusa13-10
Contra Costa111818
Del Norte----
El Dorado-4--
Fresno83108-
Glenn1942110
Humboldt-2--
Imperial1---
Inyo----
Kern111135-
Kings-3144-
Lake25314
Lassen----
Los Angeles286103294138
Madera4121-
Marin13--
Mariposa----
Mendocino2---
Merced13823
Modoc----
Mono----
Monterey----
Napa-7--
Nevada210-4
Orange9283576-
Placer-21528
Plumas----
Riverside1278215822
Sacramento41031642
San Benito----
San Bernardino532529136
San Diego423554612
San Francisco----
San Joaquin218208-
San Luis Obispo----
San Mateo-235-
Santa Barbara-31-
Santa Clara8231205
Santa Cruz----
Shasta3164822
Sierra----
Siskiyou1---
Solano11067
Sonoma-1112-
Stanislaus1314849
Sutter2165436
Tehama5--18
Trinity-2--
Tulare1323528-
Tuolumne----
Ventura626-11
Yolo8611736
Yuba1062311
State Totals78213493329449