AUTHOR=Haddadi Sara , Mirsaeidi Mehdi TITLE=Commentary: Meta-Analysis and Structural Dynamics of the Emergence of Genetic Variants of SARS-CoV-2 JOURNAL=Frontiers in Medicine VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2021.747109 DOI=10.3389/fmed.2021.747109 ISSN=2296-858X