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West Nile Virus
Human
2014
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West Nile Virus:  California - Human
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Siskiyou County Del Norte County Modoc County Humboldt County Trinity County Lassen County Shasta County (2) Humboldt County Tehama County (5) Plumas County Butte County (22) Mendocino County (1) Glenn County (12) Sierra County Yuba County (4) Lake County (1) Nevada County Colusa County (5) Placer County (5) Sutter County (4) El Dorado County Alpine County Yolo County (10) Napa County Sonoma County Sacramento County (10) Mono County Amador County Solano County (1) Calaveras County Tuolumne County Marin County San Joaquin County (8) Solano County (1) Solano County (1) Contra Costa County (4) Solano County (1) Stanislaus County (35) Sacramento County (10) Contra Costa County (4) Alameda County Mariposa County Marin County San Francisco County San Francisco County Alameda County San Francisco County Madera County (3) San Francisco County San Francisco County San Francisco County San Mateo County San Francisco County San Francisco County Merced County (1) Fresno County (35) Santa Clara County (9) Inyo County Santa Cruz County San Benito County Monterey County Tulare County (17) Kings County (3) San Bernardino County (13) San Luis Obispo County Kern County (9) Santa Barbara County Ventura County Los Angeles County (159) Riverside County (9) Santa Barbara County Santa Barbara County Santa Barbara County Santa Barbara County Ventura County Ventura County Ventura County Orange County (214) Los Angeles County (159) San Diego County (5) Santa Barbara County Los Angeles County (159) Imperial County (2) Ventura County Los Angeles County (159) Los Angeles County (159) San Diego County (5) 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 2014 Data as of 3 am, Oct 29, 2014*
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 Local Jurisdiction - California, 2014
Butte County22
Colusa County5
Contra Costa County4
Fresno County35
Glenn County12
Imperial County2
Kern County9
Kings County3
Lake County1
Los Angeles County159
Madera County3
Mendocino County1
Merced County1
Orange County214
Placer County5
Riverside County9
Sacramento County10
San Bernardino County13
San Diego County5
San Joaquin County8
Santa Clara County9
Shasta County2
Solano County1
Stanislaus County35
Sutter County4
Tehama County5
Tulare County17
Yolo County10
Yuba County4
Cumulative Total Entire State: 608
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Map Legend
* Data demonstrates local jurisdiction of residence and not necessarily the locale where the infection was acquired.
** States and counties in yellow are those in which virus activity has been reported historically, but no positive test results have been reported or no surveillance has occurred this year.