human cases

YTD: 5 Counties: 3
There was 1 new WNV positive human case reported in California this week from Fresno County. This is the first WNV positive human case from Fresno County this year. 5 human cases from 3 counties have tested positive for WNV in 2010.

horses

YTD: 0 Counties: 0
No horses have tested positive for WNV in 2010.

dead birds

YTD: 143 Counties: 18
There were 47 new WNV positive dead birds reported in California this week from the following counties: Fresno (4), Kern (1), Los Angeles (1), Madera (1), Merced (1), Orange (1), Sacramento (17), San Joaquin (11), Santa Clara (1), Shasta (1), Stanislaus (6), Tulare (1), and Yolo (1). This is the first indication of WNV from Shasta County this year. [More info]
143 dead birds from 18 counties have tested positive for WNV in 2010.

mosquito samples

YTD: 322 Counties: 18
There were 120 new WNV positive mosquito samples reported in California last week from the following counties: Fresno (10), Imperial (2), Kern (25), Kings (4), Los Angeles (3), Madera (1), Orange (4), Placer (2), Riverside (7), Sacramento (38), Stanislaus (5), Sutter (1), Tulare (17), and Yolo (1). These are the first WNV positive mosquito samples from Placer and Yolo counties this year. This is the first indication of WNV from Kings County this year. 322 mosquito samples from 18 counties have tested positive for WNV in 2010.

sentinel chickens

YTD: 24 Counties: 3
There were 16 new WNV positive sentinel chickens reported in California last week from the following counties: Imperial (5), Kern (1), and Riverside (10). This is the first WNV positive sentinel chicken from Kern County this year.

24 sentinel chickens from 3 counties have tested positive for WNV in 2010.

squirrels

YTD: 3 Counties: 3
There have been 2 new WNV positive squirrels reported in California last week from Fresno (1) and San Bernardino (1) counties. These are the first WNV positive squirrels from Fresno and San Bernardino counties this year. 3 squirrels from 3 counties have tested positive for WNV in 2010.