A poultry stall at a Hong Kong market has been disinfected after an environmental sample tested positive for the H9 bird flu virus, with shoppers remaining largely unfazed despite a recent infection involving a two-year-old boy.The affected stall, the only live poultry shop operating inside Sha Tin’s Wo Che Market, temporarily suspended operations on Tuesday morning for cleaning.The shop owner and three staff members were seen scrubbing live chicken cages and wiping down price tags while...