Nosocomial severe acute respiratory coronavirus virus 2 (SARS-CoV-2) transmission arising from a case of N-gene dropout on reverse-transcription polymerase chain reaction (RT-PCR) testing

院内感染严重急性呼吸道冠状病毒2 (SARS-CoV-2) 的病例，源于逆转录聚合酶链式反应 (RT-PCR) 检测中 N 基因缺失。