2017 SLEV Activity by County

(2024-04-19) - Source: http://westnile.ca.gov

CountyHuman CasesMosquito SamplesSentinel Chickens
State Totals41799
Alameda---
Alpine---
Amador---
Butte11-
Calaveras---
Colusa---
Contra Costa---
Del Norte---
El Dorado---
Fresno-63-
Glenn---
Humboldt---
Imperial-3-
Inyo---
Kern118-
Kings-21-
Lake---
Lassen---
Los Angeles-12
Madera-10-
Marin---
Mariposa---
Mendocino---
Merced-21
Modoc---
Mono---
Monterey---
Napa---
Nevada---
Orange---
Placer-1-
Plumas---
Riverside-23-
Sacramento---
San Benito---
San Bernardino-26
San Diego---
San Francisco---
San Joaquin---
San Luis Obispo---
San Mateo---
Santa Barbara---
Santa Clara---
Santa Cruz---
Shasta---
Sierra---
Siskiyou---
Solano---
Sonoma---
Stanislaus127-
Sutter---
Tehama---
Trinity---
Tulare-6-
Tuolumne---
Ventura1--
Yolo---
Yuba-1-
State Totals41799