Abstract

SARS-CoV2, the infectious biological entity has made havoc across the globe and created a question mark on the survival of humans. This infectious agent is a variant of SARS-CoV spread in 2003 and more dangerous than previous infectious particles belonging to the same family. Biological objects get a mutation in their genetic makeup which is either beneficial or harmful. If a mutation is useful, the entity is selected by nature for survival. Such genetic changes are continuous processes, and organisms generate their variants. In this review, we have highlighted whether this theory is true regarding SARS-CoV2 or not. We have estimated the probability of reappearance of coronaviridae members in future with their variant forms.