> There were two variants in the market... No, there were two distinct lineages in the market. That's different than variants. The lineages are important beca

> There were two variants in the market... No, there were two distinct lineages in the market. That's different than variants. The lineages are important because although the differences between the sequences are small, they are distinct, and there are no known transitional haplotypes. > given the speed at which SARS-COV-2 variants have mutated in humans, well, how likely is it that the market was the source? See Pekar et al: https://zenodo.org/record/6342616 https://zenodo.org/record/6342616 They deal with this question directly.