近年来,人们都普遍认为,在与传染病的斗争中,人类已取得了胜利。事实上,传染病的防治的确已取得了令人瞩目的进展:天花已经消灭,其他传染病也将得到控制或消灭。但可悲的是,伴随乐观而来的,是一种虚假的安全感:许多新、旧传染病正在以令人吃惊的速度传播,全球面临新出现的和重新出现的传染病的威胁! In recent years, it is generally accepted that mankind has won in the fight against infectious diseases. In fact, remarkable progress has indeed been made in the prevention and control of infectious diseases: smallpox has been eliminated and other infectious diseases will be controlled or eliminated. Sadly, however, optimism comes with a false sense of security: many new and old ones are spreading at an alarming rate and the world faces the threat of new and emerging infectious diseases!