FAQ: What is the difference between the NEBNext VarSkip Short SARS-CoV-2 Primer Mixes and the NEBNext ARTIC SARS-CoV-2 Primer Mixes?

SARS-CoV-2 Mixes 1 and 2 for SARS-CoV-2 genome amplification are based on hCoV-2019/nCoV-2019 Version 3 (v3) sequences with balanced primer concentrations. NEBNext VarSkip Short SARS-CoV-2 Mixes 1 and 2 for SARS-CoV-2 genome amplification were designed to reduce the impact of variants on amplification efficiency. NEBNext ARTIC SARS-CoV-2 amplicons are ~400 bp, whereas NEBNext VarSkip Short SARS-CoV-2 amplicons are ~550 bp.