Sapporo, Oct. 22 (Jiji Press)--The Hokkaido government in northern Japan on Wednesday reported the first case of infection with highly pathogenic avian influenza confirmed at a poultry farm in the country this season. At the farm in the town of Shiraoi where the case was found, the Hokkaido government started to kill and dispose of some 459,000 laying hens, placing a ban on the transportati...