Nhật Bản phát hiện ca nhiễm biến thể Omicron đầu tiên trong cộng đồng
Bộ Y tế, Lao động và Phúc lợi Nhật Bản (MHLW) vừa xác nhận ca nhiễm biến thể Omicron đầu tiên trong cộng đồng ở nước này.
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