Week 25

Abstract

Dead Birds & Squirrels Twenty WNV positive birds were reported this week from Kern (1), Los Angeles (8), Merced (2), Placer (1), Sacramento (1), San Joaquin (3), Solano (1), Stanislaus (2), and Yolo (1) counties. These are the first WNV positive dead birds from Kern and San Joaquin counties and the first indication of WNV activity in Placer, Stanislaus, and Yolo counties this year. An additional two dead birds tested positive for chronic WNV infection from two counties. In 2013, 37 dead birds have tested positive for WNV from 15 counties and an additional 27 dead birds have tested positive for chronic WNV infection from 16 counties. At this time last year, 169 dead birds had tested positive for WNV from 13 counties.