Xuất hiện virus cúm gia cầm mới gây tử vong
Các nhà khoa học Mỹ cho biết một chủng virus cúm gia cầm mới là H3N8 đã gây ra căn bệnh viêm phổi khiến 162 chú hải cẩu dưới 12 tháng tuổi ở vùng bờ biển Đông Bắc nước Mỹ bị chết và đây có thể là một mối nguy hiểm mới đối với con người.
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