If one assumes that the number of asymptomatic or minimally symptomatic cases is several times as high as the number of reported cases, the case fatality rate may be considerably less than 1%. This suggests that the overall clinical consequences of Covid-19 may ultimately be more akin to those of a severe seasonal influenza (which has a case fatality rate of approximately 0.1%) or a pandemic influenza (similar to those in 1957 and 1968) of 2.5%, rather than a disease similar to SARS or MERS, which have had case fatality rates of 9 to 10% and 36%, respectively.
https://www.nejm.org/doi/full/10.1056/NEJMe2002387?
Fauci等人表示，如果我們假定無症狀或症狀輕微的病例數是報告病例數的幾倍，則病死率可能大大低於1％。
這表明Covid-19的總體臨床結果可能最終更類似於嚴重的季節性流感（病死率約為0.1％）或大流行性流感（與1957年和1968年的相似），而非一種類似於SARS或MERS的疾病，這兩者的病死率分別為9％至10％和36％。
Fauci等人還指出，任何呼吸道病毒的傳播效率都對遏製和緩解其暴發的策略研究具有重要意義。當前的研究表明，新冠病毒的基本傳染數（R0）為2.2，這意味著平均每個感染者會將病毒傳播給另外兩個人。而在R0數字降至1.0以下之前，疫情暴發可能會繼續蔓延。
https://www.wenxuecity.com/news/2020/02/29/9183802.html
