[USGS Logo]
West Nile Virus
Sentinel
2008
Picture of Sentinel
USGS Logo Banner
West Nile Virus:  California - Sentinel
[Clickable Map of USA]
Siskiyou County Del Norte County Modoc County Humboldt County Trinity County Lassen County Shasta County Humboldt County Tehama County Plumas County Butte County (26) Mendocino County Glenn County (3) Sierra County Yuba County (1) Lake County Nevada County Colusa County (1) Placer County (9) Sutter County (8) El Dorado County Alpine County Yolo County Napa County Sonoma County Sacramento County (4) Mono County Amador County Solano County Calaveras County Tuolumne County Marin County San Joaquin County (4) Solano County Solano County Contra Costa County (14) Solano County Stanislaus County (30) Sacramento County (4) Contra Costa County (14) Alameda County Mariposa County Marin County San Francisco County San Francisco County Alameda County San Francisco County Madera County San Francisco County San Francisco County San Francisco County San Mateo County San Francisco County San Francisco County Merced County Fresno County (13) Santa Clara County Inyo County Santa Cruz County San Benito County Monterey County Tulare County (15) Kings County San Bernardino County (51) San Luis Obispo County Kern County (10) Santa Barbara County Ventura County (4) Los Angeles County (87) Riverside County (93) Santa Barbara County Santa Barbara County Santa Barbara County Santa Barbara County Ventura County (4) Ventura County (4) Ventura County (4) Orange County (3) Los Angeles County (87) San Diego County (13) Santa Barbara County Los Angeles County (87) Imperial County (21) Ventura County (4) Los Angeles County (87) Los Angeles County (87) San Diego County (13) 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 Sentinel** Infections by County - California, 2008
Butte County26
Colusa County1
Contra Costa County14
Fresno County13
Glenn County3
Imperial County21
Kern County10
Los Angeles County87
Orange County3
Placer County9
Riverside County93
Sacramento County4
San Bernardino County51
San Diego County13
San Joaquin County4
Stanislaus County30
Sutter County8
Tulare County15
Ventura County4
Yuba County1
Cumulative Total Entire State: 410
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.