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West Nile Virus
Bird
2006
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West Nile Virus:  California - Bird
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Siskiyou County (1) Del Norte County Modoc County (2) Humboldt County (2) Trinity County (1) Lassen County (3) Shasta County (89) Humboldt County (2) Tehama County (12) Plumas County Butte County (40) Mendocino County (7) Glenn County (35) Sierra County Yuba County (1) Lake County (8) Nevada County (4) Colusa County (9) Placer County (13) Sutter County (2) El Dorado County (19) Alpine County Yolo County (54) Napa County (8) Sonoma County (23) Sacramento County (89) Mono County (1) Amador County (2) Solano County (21) Calaveras County (2) Tuolumne County (1) Marin County (9) San Joaquin County (47) Solano County (21) Solano County (21) Contra Costa County (93) Solano County (21) Stanislaus County (77) Sacramento County (89) Contra Costa County (93) Alameda County (41) Mariposa County (1) Marin County (9) San Francisco County (3) San Francisco County (3) Alameda County (41) San Francisco County (3) Madera County (3) San Francisco County (3) San Francisco County (3) San Francisco County (3) San Mateo County (7) San Francisco County (3) San Francisco County (3) Merced County (41) Fresno County (75) Santa Clara County (224) Inyo County (8) Santa Cruz County (7) San Benito County (1) Monterey County (5) Tulare County (14) Kings County (13) San Bernardino County (33) San Luis Obispo County (14) Kern County (24) Santa Barbara County (19) Ventura County (62) Los Angeles County (98) Riverside County (3) Santa Barbara County (19) Santa Barbara County (19) Santa Barbara County (19) Santa Barbara County (19) Ventura County (62) Ventura County (62) Ventura County (62) Orange County (49) Los Angeles County (98) San Diego County (26) Santa Barbara County (19) Los Angeles County (98) Imperial County Ventura County (62) Los Angeles County (98) Los Angeles County (98) San Diego County (26) 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 2006 Data as of 3 am, May 01, 2007*
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, 2006
Alameda County41
Amador County2
Butte County40
Calaveras County2
Colusa County9
Contra Costa County93
El Dorado County19
Fresno County75
Glenn County35
Humboldt County2
Inyo County8
Kern County24
Kings County13
Lake County8
Lassen County3
Los Angeles County98
Madera County3
Marin County9
Mariposa County1
Mendocino County7
Merced County41
Modoc County2
Mono County1
Monterey County5
Napa County8
Nevada County4
Orange County49
Placer County13
Riverside County3
Sacramento County89
San Benito County1
San Bernardino County33
San Diego County26
San Francisco County3
San Joaquin County47
San Luis Obispo County14
San Mateo County7
Santa Barbara County19
Santa Clara County224
Santa Cruz County7
Shasta County89
Siskiyou County1
Solano County21
Sonoma County23
Stanislaus County77
Sutter County2
Tehama County12
Trinity County1
Tulare County14
Tuolumne County1
Ventura County62
Yolo County54
Yuba County1
Cumulative Total Entire State: 1446
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Map Legend
* States and counties in yellow either did not perform surveillance or did not report any positive test results from their surveillance.