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Mutation frequency of C29200T and C29203T. (A) Total number of virus sequence uploaded to GISAID from January 21, 2020 to February 18, 2022 compared to number of C29200T and C29203T mutations in the same period. (B) Proportion of C29200T and C29203T mutation. (C) Distribution of C29200T mutation across the variants. (D) Distribution of C29203T mutation across the variants.
