Published: 28 April, 2020 | Volume 3 - Issue 1 | Pages: 001-003
Phylogenetic network analysis of amino acid sequences of spike glycoprotein derived from 160 complete human SARS-Cov-2 genomes. Our research results find ten central variants distinguished by amino acid changes, which we have named A1a, A2, A2a, A3, A6, A7, B, B1, B2, and B4, with being the ancestral type according to the bat out group coronavirus. The A1a, A6, A7 and B4 types are found in significant proportions in East Asia, A2, A2a, and A3 types are found in Europeans, B, B1, and B2 types are found in Americans. In contrast, the B4 type is the most common type in America and East Asia.