West Nile virus-positive dead birds
by County and City California, 2021

(2022-07-07) - Source: http://westnile.ca.gov

Alameda County
Livermore1
Pleasanton1
Total Positives for Alameda County: 2
 
Butte County
Chico1
Oroville1
Total Positives for Butte County: 2
 
Contra Costa County
Brentwood2
Martinez1
San Pablo1
Total Positives for Contra Costa County: 4
 
Los Angeles County
Baldwin Park1
Cerritos3
Covina13
Duarte1
Glendora3
Lakewood1
Long Beach1
Norwalk1
Pasadena2
Pomona1
Sierra Madre1
South Pasadena4
Sunnland1
Torrance1
Valley Village1
West Covina7
Woodland Hills1
Total Positives for Los Angeles County: 43
 
Merced County
Turlock1
Total Positives for Merced County: 1
 
Nevada County
Grass Valley1
Penn Valley1
Total Positives for Nevada County: 2
 
Orange County
Anaheim1
Irvine2
Placentia1
Rancho Santa Margarita1
San Clemente1
Yorba Linda1
Total Positives for Orange County: 7
 
Placer County
Granite Bay1
Roseville4
Total Positives for Placer County: 5
 
Sacramento County
Antelope2
Carmichael17
Citrus Heights5
Elk Grove5
Elverta1
Fair Oaks2
Folsom1
Galt14
Gold River1
Orangevale3
Rancho Cordova1
Rio Linda2
Sacramento44
Wilton2
Total Positives for Sacramento County: 100
 
San Bernardino County
Lake Arrowhead1
Total Positives for San Bernardino County: 1
 
San Diego County
Spring Valley1
Total Positives for San Diego County: 1
 
San Joaquin County
Manteca7
Ripon2
Stockton2
Tracy6
Total Positives for San Joaquin County: 17
 
Santa Clara County
San Jose1
Total Positives for Santa Clara County: 1
 
Solano County
Dixon2
Total Positives for Solano County: 2
 
Sonoma County
Santa Rosa1
Total Positives for Sonoma County: 1
 
Stanislaus County
Newman1
Turlock1
Total Positives for Stanislaus County: 2
 
Sutter County
Yuba City1
Total Positives for Sutter County: 1
 
Tulare County
Visalia7
Total Positives for Tulare County: 7
 
Ventura County
Simi Valley1
Total Positives for Ventura County: 1
 
Yolo County
Davis9
Winters1
Total Positives for Yolo County: 10

Total Positives for all Counties: 210

Source: Vector-Borne Disease Section, California Department of Public Health