var vtn_player_type = "vp";var ven_video_key="NjA5Mzc2fHwxNDcxfHwwfHx8fHx8";var ven_width="660";var ven_height="409";Hong Kong begins culling thousands of chickens after the deadly H7N9 virus was discovered in poultry imported from China. Duration: 01:06
