West Nile virus-positive dead birds
by County and City California, 2020

(2021-12-01) - Source: http://westnile.ca.gov

Alameda County
Dublin1
Livermore6
Oakland1
Total Positives for Alameda County: 8
 
Alpine County
Bear Valley1
Total Positives for Alpine County: 1
 
Butte County
Chico3
Durham1
Total Positives for Butte County: 4
 
Contra Costa County
Antioch1
Brentwood16
Concord2
Discovery Bay1
Martinez1
Walnut Creek1
Total Positives for Contra Costa County: 22
 
Fresno County
Fresno4
Selma1
Total Positives for Fresno County: 5
 
Los Angeles County
Artesia2
Bell Gardens1
Burbank4
Cerritos14
Chatsworth2
Culver City4
Downey1
El Segundo1
Hawthorne1
La Crescenta1
Lakewood3
Lancaster1
La Verne1
Lawndale2
Long Beach22
Los Angeles25
Los Angeles (Westchester)1
Monterey Park1
North Hills1
North Hollywood4
Northridge2
Santa Monica1
Sherman Oaks1
Signal Hill1
Torrance1
Van Nuys1
Venice1
West Covina1
Woodland Hills1
Total Positives for Los Angeles County: 102
 
Marin County
San Rafael1
Total Positives for Marin County: 1
 
Merced County
Atwater1
Merced1
Total Positives for Merced County: 2
 
Napa County
Yountville1
Total Positives for Napa County: 1
 
Orange County
Anaheim13
Buena Park1
Costa mesa2
Costa Mesa1
Cypress5
Fullerton4
Garden Grove1
Huntington Beach6
Irvine4
Lake Forest1
Orange2
Placentia1
Santa Ana2
Tustin3
Westminster1
Total Positives for Orange County: 47
 
Placer County
Lincoln2
Rocklin1
Total Positives for Placer County: 3
 
Riverside County
Corona1
Riverside1
Total Positives for Riverside County: 2
 
Sacramento County
Antelope3
Carmichael17
Citrus Heights6
Elk Grove4
Elverta1
Fair Oaks9
Galt2
Gold River1
North Highlands2
Orangevale1
Rio Linda2
Sacramento41
Wilton2
Total Positives for Sacramento County: 91
 
San Diego County
Escondido1
Total Positives for San Diego County: 1
 
San Joaquin County
Lodi1
Ripon1
Stockton1
Woodbridge1
Total Positives for San Joaquin County: 4
 
San Mateo County
South San Francisco1
Total Positives for San Mateo County: 1
 
Santa Clara County
Los Altos1
San Jose3
Santa Clara1
Saratoga2
Total Positives for Santa Clara County: 7
 
Solano County
Benicia1
Fairfield1
Vacaville1
Total Positives for Solano County: 3
 
Stanislaus County
Ceres1
Turlock3
Total Positives for Stanislaus County: 4
 
Tulare County
Farmersville1
Tulare1
Visalia2
Woodlake1
Total Positives for Tulare County: 5
 
Yolo County
Davis25
Winters1
Woodland3
Total Positives for Yolo County: 29

Total Positives for all Counties: 343

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