ly 370 nt sequence of RdRp gene) and 87.9% nucleotide identity to bat CoV strain bat-SL-CoVZC45 and bat-SL-CoVZXC21, indicating that it was quite divergent from the currently known human CoV, including SARS-CoV (79.7%). To put 2019-nCoV in the context of whole Coronaviridae family, we aligned ORF1b protein sequences from representative CoVs diversity for phylogenetic analys