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流行性感冒对人类健康和整个社会而言都是一种严重的威胁;此外,流感还给病人造成严重的后果。据报道,在1997年美国的主要死因中,流感居第6位;仅美国每年约有36 155例患者的死亡与流感相关的并发症有关。处于流感并发症高危的病人
Influenza is a serious threat to human health and to society as a whole; in addition, the flu has serious consequences for patients. It was reported that influenza ranked sixth in the major causes of death in the United States in 1997; about 36,155 deaths per year in the United States alone were associated with influenza-related complications. In high-risk patients with influenza complications