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Increased sequencing depth at BA.1 variant-defining positions 22898, 26530 and 26577. Analysis of 59 BA.1 samples with V4 and V4.1 primers. (a) Sequencing depth of variant-defining mutations at all 17 nucleotide positions as defined by aln2type for BA.1 with V4 (blue) and V4.1 (orange) primers. (b) Number of samples with masked bases (N’s) at variant-defining nucleotide positions in BA.1 samples with V4 (blue) and V4.1 (orange) primers.
