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The unrooted phylogenetic tree of the 103 SARS-CoV-2 genomes. The ID of each sample is the same as in Fig. 4A. Note WH_2019/12/31.a represents the reference genome (NC_045512). Note SZ_2020/01/13.a had C at both positions 8,782 and 28,144 in the genome, belonging to neither L nor S lineage.
