中国内地出现的H7N9(全称甲型流感病毒H7N9亚型)疫情,引起诸多关注。不少媒体纷纷回忆起20世纪以来爆发的数次大流感,尤其是1918年的“西班牙大流感”。其实,在1918年前也发生过很多流感灾难,特别是1889年,在飞机尚未成为交通工具的背景下,一场“俄国流感”仅用几个月就传遍全球,导致约100万人丧生。一些人认为,1889-1890年的俄国流感由甲型流感病毒H2N2亚型导 The outbreak of H7N9 (full-name influenza A virus H7N9 subtype) in mainland China has aroused a great deal of attention. Many media organizations have recalled several pandemic flu outbreaks since the 20th century, especially the “Spanish flu” of 1918. In fact, many flu pandemics occurred before 1918, especially in 1889, when the plane was not yet a means of transport, a “Russian flu” spread to the world in only a few months, resulting in about 1 million People died. Some believe that the Russian influenza of 1889-1890 was induced by the influenza A virus H2N2 subtype