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Month-wise occurrence of key recurring severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) unannotated open reading frame (uORF) mutations. (A) Month-wise occurrence of five highly recurring SARS-CoV-2 uORF mutations. Note that the S.uORF1:Y8- and S.uORF1:M9- emerged only after July 2020. (B) Month-wise occurrence of four moderately recurring SARS-CoV-2 uORF mutations.
