At the beginning of the outbreaks in Hong Kong, mainland China and other areas, we were unfamiliar with the deadly SARS-CoV. It took about 3 months to complete the sequencing of this coronavirus [44]. The global success in the fight against SARS was partly based on epidemiological and biological characteristics of the infectious agent SARS-CoV. An understanding of transmission patterns and the ability to diagnose and confirm affected patients ultimately led to effective containment measures and a slowdown in the spread of the disease. Due to the lack of medications or a vaccine, the options for early intervention were limited to public health measures [45].