1997:H5N1传染人类
1997：H5N1传染人类1997: H5N1 Infects Humans
首次发现直接由禽类传染人类的流感病毒，此病毒的传染与接触家禽市场有关。香港有六人死亡。这种病毒之所以不同，是因为它并没有通过传染猪，使猪成为中间宿主，而是直接由鸡传染给人类。另外，年轻人中感染最严重的病症有些与1918年“西班牙流感”病毒相似。
The first time an influenza virus was found to be transmitted directly from birds to people, with infections linked to exposure to poultry markets. Six people in Hong Kong died. This virus was different because it moved directly from chickens to people, rather than having been altered by infecting pigs as an intermediate host. In addition, many of the most severe illnesses occurred in young adults similar to illnesses caused by the 1918 Spanish flu virus.
