human cases

YTD: 103 Counties: 13
There were 11 new WNV positive human cases reported in California this week from the following counties: Los Angeles (3), Orange (6), and Riverside (2). There has been 1 WNV-related fatality from Orange County reported in California this year. 103 human cases from 13 counties have tested positive for WNV in 2008.

horses

YTD: 5 Counties: 4
There has been 1 WNV-related horse euthanized or died in California this year from Riverside county. 5 horses from 4 counties have tested positive for WNV in 2008.

dead birds

YTD: 1,456 Counties: 36
There were 161 new WNV positive dead birds reported in California this week from the following counties: Contra Costa (8), Fresno (1), Glenn (3), Los Angeles (59), Orange (16), Riverside (4), Sacramento (5), San Bernardino (23), San Diego (33), San Joaquin (2), San Mateo (1), Santa Barbara (1), Stanislaus (2), Ventura (2), and Yolo (1). This is the first indication of WNV from Santa Barbara County this year. 1,456 dead birds from 36 counties have tested positive for WNV in 2008.

mosquito samples

YTD: 1,101 Counties: 24
There were 195 new WNV positive mosquito samples reported in California last week from the following counties: Alameda (1), Butte (3), Contra Costa (7), Fresno (5), Imperial (6), Lake (1), Los Angeles (39), Orange (4), Placer (3), Riverside (5), Sacramento (45), San Bernardino (26), San Diego (1), San Joaquin (33), Stanislaus (5), Tulare (8), and Yolo (3). This is the first WNV positive mosquito sample from Alameda County this year. 1,101 mosquito samples from 24 counties have tested positive for WNV in 2008.

sentinel chickens

YTD: 109 Counties: 12
There were 46 new WNV positive sentinel chickens reported in California last week from the following counties: Los Angeles (16), Orange (3), Riverside (14), Sacramento (4), San Bernardino (7), San Joaquin (1), and Sutter (1). These are the first WNV positive sentinel chickens from Orange, San Joaquin, and Sutter counties this year. 109 sentinel chickens from 12 counties have tested positive for WNV in 2008.

squirrels

YTD: 10 Counties: 3
There was 1 new WNV positive squirrel reported in California this week from San Bernardino County. 10 squirrels from 3 counties have tested positive for WNV in 2008.