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West Nile Virus
Sentinel
2005
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West Nile Virus:  California - Sentinel
Siskiyou County Del Norte County Modoc County Humboldt County Trinity County Lassen County Shasta County (9) Humboldt County Tehama County (1) Plumas County Butte County (15) Mendocino County Glenn County (9) Sierra County Yuba County (10) Lake County (4) Nevada County Colusa County (3) Placer County (2) Sutter County (6) El Dorado County Alpine County Yolo County (8) Napa County (2) Sonoma County Sacramento County (10) Mono County Amador County Solano County (23) Calaveras County (1) Tuolumne County Marin County San Joaquin County (17) Solano County (23) Solano County (23) Contra Costa County (18) Solano County (23) Stanislaus County (70) Sacramento County (10) Contra Costa County (18) Alameda County Mariposa County Marin County San Francisco County San Francisco County Alameda County San Francisco County Madera County (7) San Francisco County San Francisco County San Francisco County San Mateo County San Francisco County San Francisco County Merced County (15) Fresno County (46) Santa Clara County Inyo County Santa Cruz County San Benito County Monterey County Tulare County (47) Kings County (20) San Bernardino County (90) San Luis Obispo County Kern County (123) Santa Barbara County (8) Ventura County (5) Los Angeles County (71) Riverside County (158) Santa Barbara County (8) Santa Barbara County (8) Santa Barbara County (8) Santa Barbara County (8) Ventura County (5) Ventura County (5) Ventura County (5) Orange County (2) Los Angeles County (71) San Diego County Santa Barbara County (8) Los Angeles County (71) Imperial County (54) Ventura County (5) Los Angeles County (71) Los Angeles County (71) San Diego County 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 2005 Data as of 3 am, May 05, 2006*
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, 2005
Butte County15
Calaveras County1
Colusa County3
Contra Costa County18
Fresno County46
Glenn County9
Imperial County54
Kern County123
Kings County20
Lake County4
Los Angeles County71
Madera County7
Merced County15
Napa County2
Orange County2
Placer County2
Riverside County158
Sacramento County10
San Bernardino County90
San Joaquin County17
Santa Barbara County8
Shasta County9
Solano County23
Stanislaus County70
Sutter County6
Tehama County1
Tulare County47
Ventura County5
Yolo County8
Yuba County10
Cumulative Total Entire State: 854
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Map Legend
* States shown in yellow are those in which virus activity has been reported historically, but all counties in these states have not necessarily reported virus activity.