| 1 | | | | 2019 | nCoV 2019 | 6 4 | 2 | SARS | SARS MERS | SARS SARS | | 2 | | | | | | | | | | | | | 14 | | | | | 14 | | | | | | | | | | | | | | | | | | | | | | | | | | |