到1月底，来自中国大陆和香港的医生阐明了该病毒的临床特征，通过在《柳叶刀》上发表的研究论文，向世界警告了新冠病毒的威胁。
By the end of January, doctors from Mainland China and Hong Kong knew the clinical characteristics of the virus and published research papers in The Lancet to warn the world about the threat of the coronavirus.