Cao Bằng: Nguy cơ xâm nhập cúm H7N9 rất cao

[media=https://canthotv.vn/wp-content/uploads/2017/03/Sequence-01.00_20_51_01.Still238.jpg]http://media4.canthotv.vn//2017/TH/03/12/nguycocum.mp4|http://media4.canthotv.vn//2017/TH/03/12/nguycocum.mp4[/media]