2022 SLEV Activity by County

(2024-11-21) - Source: http://westnile.ca.gov

CountyHuman CasesMosquito SamplesSentinel Chickens
State Totals161520
Alameda---
Alpine---
Amador---
Butte---
Calaveras---
Colusa---
Contra Costa---
Del Norte---
El Dorado---
Fresno214-
Glenn---
Humboldt---
Imperial-6-
Inyo---
Kern312-
Kings-27-
Lake---
Lassen---
Los Angeles31-
Madera-18-
Marin---
Mariposa---
Mendocino---
Merced---
Modoc---
Mono---
Monterey---
Napa---
Nevada---
Orange1--
Placer---
Plumas---
Riverside-57-
Sacramento1--
San Benito---
San Bernardino---
San Diego---
San Francisco---
San Joaquin---
San Luis Obispo---
San Mateo---
Santa Barbara---
Santa Clara---
Santa Cruz---
Shasta---
Sierra---
Siskiyou---
Solano---
Sonoma1--
Stanislaus11-
Sutter---
Tehama---
Trinity---
Tulare416-
Tuolumne---
Ventura---
Yolo---
Yuba---
State Totals161520