英文：An acute contagious viral infection characterized by inflammation of the respiratory tract and by fever, chills, muscular pain, and prostration.
中文：流行性感冒一种急性的有传染性的病毒感染, 主要特征是呼吸道感染和发烧、寒战、肌肉疼痛和虚脱
英文：A gene that causes the transformation of normal cells into cancerous tumor cells, especially a viral gene that transforms a host cell into a tumor cell.
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