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West Nile Virus
Human
2005
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West Nile Virus:  California - Human
Siskiyou County Del Norte County Modoc County Humboldt County (1) Trinity County Lassen County Shasta County (1) Humboldt County (1) Tehama County (4) Plumas County (1) Butte County (24) Mendocino County Glenn County (13) Sierra County Yuba County (6) Lake County Nevada County (4) Colusa County (2) Placer County (35) Sutter County (9) El Dorado County (1) Alpine County Yolo County (11) Napa County Sonoma County (1) Sacramento County (163) Mono County Amador County (3) Solano County (5) Calaveras County (2) Tuolumne County (1) Marin County San Joaquin County (34) Solano County (5) Solano County (5) Contra Costa County (11) Solano County (5) Stanislaus County (84) Sacramento County (163) Contra Costa County (11) Alameda County (1) Mariposa County Marin County San Francisco County (2) San Francisco County (2) Alameda County (1) San Francisco County (2) Madera County (18) San Francisco County (2) San Francisco County (2) San Francisco County (2) San Mateo County (1) San Francisco County (2) San Francisco County (2) Merced County (25) Fresno County (59) Santa Clara County (5) Inyo County Santa Cruz County San Benito County Monterey County Tulare County (56) Kings County (32) San Bernardino County (33) San Luis Obispo County Kern County (67) Santa Barbara County (2) Ventura County (1) Los Angeles County (40) Riverside County (103) Santa Barbara County (2) Santa Barbara County (2) Santa Barbara County (2) Santa Barbara County (2) Ventura County (1) Ventura County (1) Ventura County (1) Orange County (17) Los Angeles County (40) San Diego County (1) Santa Barbara County (2) Los Angeles County (40) Imperial County (1) Ventura County (1) Los Angeles County (40) Los Angeles County (40) San Diego County (1) 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 Human Disease Cases by County - California, 2005
Alameda County1
Amador County3
Butte County24
Calaveras County2
Colusa County2
Contra Costa County11
El Dorado County1
Fresno County59
Glenn County13
Humboldt County1
Imperial County1
Kern County67
Kings County32
Los Angeles County40
Madera County18
Merced County25
Nevada County4
Orange County17
Placer County35
Plumas County1
Riverside County103
Sacramento County163
San Bernardino County33
San Diego County1
San Francisco County2
San Joaquin County34
San Mateo County1
Santa Barbara County2
Santa Clara County5
Shasta County1
Solano County5
Sonoma County1
Stanislaus County84
Sutter County9
Tehama County4
Tulare County56
Tuolumne County1
Ventura County1
Yolo County11
Yuba County6
Cumulative Total Entire State: 880
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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.