LONDON – The British government said on Nov 5 that cases of bird flu had been confirmed in commercial poultry at premises in Yorkshire, hours after it increased the risk level of the disease from medium to high. All poultry on the infected premises will be humanely culled and a 3km protection zone had been put in place surrounding the premises, it said in a statement. Bird flu, or avian influenza, which has killed hundreds of millions of birds around the globe in recent years, has increasingly s
综合
海峡时报-世界
2024-11-06 00:00:00.0