The aim of this study was to monitor avian influenza subtype H5N1 infection in poultry in 3 northeastern provinces of Thailand. A total of 794 sera from chickens and ducks of local farmers were serology tested. In Khon Kaen, a total of 381 samples (chicken = 344, duck = 37) were collected from August to December 2011. In Mahasarakam, 78 chicken sera were collected in August 2011. In Karasin, a total of 335 samples (chicken = 331, duck = 4) were collected from June to September 2011 and January 2012. All of the sera were antibody negative by H5 AIV Ab ELISA kit (Anigen Animal Genetics Inc., Korea) and Hemagglutination inhibition test (HI). Chickens of a farm in Takanto district of Karasin province exhibited respiratory signs in late January, 2012. Cloacal... |