Advertisement01:06VideoHong KongHong Kong culls 15,000 chickens after bird flu alertPublished: 8:00am, 1 Jan 2015Updated: 8:06am, 1 Jan 2015Hong Kong begins culling thousands of chickens after the deadly H7N9 virus was discovered in poultry imported from China.AdvertisementAdvertisementSelect VoiceSelect Speed0.8x0.9x1.0x1.1x1.2x1.5x1.75x00:0000:001.00x