高致病性禽流感正在给人类带来严重威胁 纵观人类历史上每一次流感的大流行,都与禽流感病毒有着密切的联系。人类历史上最大一次的流感是1918—1919年的西班牙流感,导致全世界2000多万人死亡,是第一次世界大战死亡人数的两倍。此次流行的H1N1毒株基因组的8个片段均来源于禽流感病毒,此病毒突破宿主种间屏障先传递给猪,在猪体内进行基因重组后传递给人,再在人群中传播。1968年人的“香港流感”毒株为H3N2,1969年 HPAI is posing a serious threat to humanity Looking at every flu pandemic in human history, it is closely linked to the bird flu virus. The largest flu in human history was the Spanish flu of 1918-19, resulting in more than 20 million deaths worldwide, double the death toll of World War I. The epidemic H1N1 strain genome of eight fragments are derived from the bird flu virus, the virus break through the host interspecies barrier to pass the first pigs, pigs in the gene recombinant before passing to people, and then spread in the crowd. The 1968 “Hong Kong flu” strain was H3N2, 1969