最近两年多,SARS还没有完全退出舞台,禽流感便接踵而至了,而且大有愈演愈烈之势。不仅许多国家的家禽出现大量死亡,青海的野鸟也死掉了一大批。世界卫生组织一再发出警告:禽流感对人类造成的潜在威胁可能要远远大于SARS。最近在亚洲爆发的禽流感,是由禽流感病毒H5N1引起的。最 In the recent two years and more, the SARS has not completely withdrawn from the arena. The bird flu has come one after another, and the situation has greatly intensified. Not only have poultry died in large numbers in many countries, but a large number of wild birds in Qinghai have also died. The World Health Organization has repeatedly warned that the potential threat posed by bird flu to humans may be far greater than the SARS. The recent outbreak of bird flu in Asia is caused by the bird flu virus H5N1. most