Advertisement00:50VideoHong KongHong Kong culls thousands of chickens over avian flu scarePublished: 4:30pm, 7 Jun 2016Updated: 4:42pm, 7 Jun 2016Hong Kong culls 4,500 chickens after the deadly H7N9 bird flu virus was discovered in a chicken at a local market. (Photo: EPA)AdvertisementAdvertisementSelect VoiceSelect Speed0.8x0.9x1.0x1.1x1.2x1.5x1.75x00:0000:001.00x