Tại sao cảm cúm thường xảy ra vào mùa đông?
Các nhà nghiên cứu Mỹ đã phát hiện ra vi rút cúm thường “choàng” cho mình một lớp chất béo, vừa để giấu mình, vừa để tự bảo vệ khỏi sự khắc nghiệt của nhiệt độ thấp… và đó là lý do tại sao mùa đông là mùa của cảm cúm.
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