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2003年上半年,一种新发现的呼吸系统烈性传染病——重症急性呼吸综合征(severe acute respiratorysyncdrome,SARS)在中国和全球多个国家流行,北京市是SARS流行的重灾区。由于该病的传染性极强、致死率高并造成了极大的社会恐慌,因此对SARS的流行完全可以看成
In the first half of 2003, a newly discovered severe respiratory respiratory disease - severe acute respiratory syndrome (SARS) - was endemic in many countries in China and around the world. Beijing was the hardest hit SARS epidemic. Because of the highly contagious nature of the disease and its high lethality rate and its enormous social panic, the prevalence of SARS can well be considered as