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Phylogenetic tree constructed for the alpha, beta, gamma, and delta coronavirus, using 36 reference strains and 24 strains identified in this study. Phylogenetic analysis was based on a 406 nt partial region of the RdRp. The tree was constructed using MEGA 10 using the maximum likelihood based on the GTR + G model, and 1000 bootstraps were replicated. Samples from this study are indicated in red.
