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Spike (S) glycoprotein gene-based phylogenetic analysis of 2019-nCoV isolates (10 Chinese and 5 USA isolates). The 2019-nCoV isolates analyzed with related CoVs from past human outbreaks and of animal-origin including MERSV (camel), bovine coronavirus, canine coronavirus, bat_coronaviruses. The solid-black circles are for nCoV isolates from China and the USA.
