[USGS Logo]
West Nile Virus
Bird
2008
Picture of Bird
USGS Logo Banner
West Nile Virus:  California - Bird
[Clickable Map of USA]
Siskiyou County Del Norte County Modoc County (1) Humboldt County (1) Trinity County Lassen County Shasta County (7) Humboldt County (1) Tehama County (6) Plumas County Butte County (36) Mendocino County (1) Glenn County (17) Sierra County Yuba County Lake County (2) Nevada County (5) Colusa County (3) Placer County (3) Sutter County (2) El Dorado County (5) Alpine County Yolo County (6) Napa County Sonoma County (6) Sacramento County (120) Mono County (2) Amador County (3) Solano County (7) Calaveras County (1) Tuolumne County Marin County (1) San Joaquin County (69) Solano County (7) Solano County (7) Contra Costa County (78) Solano County (7) Stanislaus County (45) Sacramento County (120) Contra Costa County (78) Alameda County (8) Mariposa County Marin County (1) San Francisco County San Francisco County Alameda County (8) San Francisco County Madera County (2) San Francisco County San Francisco County San Francisco County San Mateo County (2) San Francisco County San Francisco County Merced County (5) Fresno County (31) Santa Clara County (11) Inyo County Santa Cruz County (3) San Benito County Monterey County (5) Tulare County (48) Kings County (1) San Bernardino County (161) San Luis Obispo County Kern County (10) Santa Barbara County (1) Ventura County (17) Los Angeles County (401) Riverside County (39) Santa Barbara County (1) Santa Barbara County (1) Santa Barbara County (1) Santa Barbara County (1) Ventura County (17) Ventura County (17) Ventura County (17) Orange County (590) Los Angeles County (401) San Diego County (469) Santa Barbara County (1) Los Angeles County (401) Imperial County Ventura County (17) Los Angeles County (401) Los Angeles County (401) San Diego County (469) Navigate to Arizona page Navigate to Idaho page Navigate to Nevada page Navigate to Oregon page Navigate to Utah page Navigate to Wyoming page
Map Scalebar 350 km
Cumulative 2008 Data as of 3 am, Nov 04, 2008*
These data are provisional and may be revised or adjusted in the future.
[Epi curve - Vertical bar graph showing number of incidents for each of 52 weeks]
Cumulative Dead Bird Infections by County - California, 2008
Alameda County8
Amador County3
Butte County36
Calaveras County1
Colusa County3
Contra Costa County78
El Dorado County5
Fresno County31
Glenn County17
Humboldt County1
Kern County10
Kings County1
Lake County2
Los Angeles County401
Madera County2
Marin County1
Mendocino County1
Merced County5
Modoc County1
Mono County2
Monterey County5
Nevada County5
Orange County590
Placer County3
Riverside County39
Sacramento County120
San Bernardino County161
San Diego County469
San Joaquin County69
San Mateo County2
Santa Barbara County1
Santa Clara County11
Santa Cruz County3
Shasta County7
Solano County7
Sonoma County6
Stanislaus County45
Sutter County2
Tehama County6
Tulare County48
Ventura County17
Yolo County6
Cumulative Total Entire State: 2231
Did You Know?
You can also navigate to Adjacent States by clicking on them.
Map Legend
* States and counties in yellow either did not perform surveillance or did not report any positive test results from their surveillance.