Question of mutation invariably comes up. I recommend this article: http://www.virology.ws/2020/01/23/a-lesson-from-sars-cov-for-2019-ncov/ http://www.virology.

Question of mutation invariably comes up. I recommend this article: http://www.virology.ws/2020/01/23/a-lesson-from-sars-cov-for-2019-ncov/ http://www.virology.ws/2020/01/23/a-lesson-from-sars-cov-for... Summary: We know of deletion event in SARS Orf8, and amino acid change in ebola glycoprotein. In both cases, it decreased viral replication or virulence.