Overview of pH1N1 Sanger sequencing and MSCSA primers and amplicon sizes.

Bp, base pairs.$5′ position of the first nucleotide of the forward primer in the corresponding gene;#5′ position of the last nucleotide of the reverse primer in the corresponding gene.Bp，即碱基对（base pairs）：对应基因中正向引物首个核苷酸的5′端位点；对应基因中反向引物最后一个核苷酸的5′端位点。