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West Nile Virus
Bird
2005
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West Nile Virus:  California - Bird
Siskiyou County (6) Del Norte County Modoc County (1) Humboldt County (4) Trinity County Lassen County (3) Shasta County (28) Humboldt County (4) Tehama County (47) Plumas County Butte County (79) Mendocino County (34) Glenn County (30) Sierra County Yuba County (12) Lake County (32) Nevada County (27) Colusa County (14) Placer County (84) Sutter County (9) El Dorado County (67) Alpine County Yolo County (17) Napa County (44) Sonoma County (78) Sacramento County (70) Mono County (1) Amador County (24) Solano County (44) Calaveras County (10) Tuolumne County (59) Marin County (14) San Joaquin County (24) Solano County (44) Solano County (44) Contra Costa County (93) Solano County (44) Stanislaus County (235) Sacramento County (70) Contra Costa County (93) Alameda County (48) Mariposa County (6) Marin County (14) San Francisco County (2) San Francisco County (2) Alameda County (48) San Francisco County (2) Madera County (22) San Francisco County (2) San Francisco County (2) San Francisco County (2) San Mateo County (10) San Francisco County (2) San Francisco County (2) Merced County (171) Fresno County (97) Santa Clara County (144) Inyo County (12) Santa Cruz County (2) San Benito County (1) Monterey County (2) Tulare County (226) Kings County (73) San Bernardino County (74) San Luis Obispo County (41) Kern County (44) Santa Barbara County (73) Ventura County (62) Los Angeles County (173) Riverside County (111) Santa Barbara County (73) Santa Barbara County (73) Santa Barbara County (73) Santa Barbara County (73) Ventura County (62) Ventura County (62) Ventura County (62) Orange County (302) Los Angeles County (173) San Diego County (160) Santa Barbara County (73) Los Angeles County (173) Imperial County Ventura County (62) Los Angeles County (173) Los Angeles County (173) San Diego County (160) 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 Dead Bird Infections by County - California, 2005
Alameda County48
Amador County24
Butte County79
Calaveras County10
Colusa County14
Contra Costa County93
El Dorado County67
Fresno County97
Glenn County30
Humboldt County4
Inyo County12
Kern County44
Kings County73
Lake County32
Lassen County3
Los Angeles County173
Madera County22
Marin County14
Mariposa County6
Mendocino County34
Merced County171
Modoc County1
Mono County1
Monterey County2
Napa County44
Nevada County27
Orange County302
Placer County84
Riverside County111
Sacramento County70
San Benito County1
San Bernardino County74
San Diego County160
San Francisco County2
San Joaquin County24
San Luis Obispo County41
San Mateo County10
Santa Barbara County73
Santa Clara County144
Santa Cruz County2
Shasta County28
Siskiyou County6
Solano County44
Sonoma County78
Stanislaus County235
Sutter County9
Tehama County47
Tulare County226
Tuolumne County59
Ventura County62
Yolo County17
Yuba County12
Cumulative Total Entire State: 3046
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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.