> Given the low vaccination rate in Sub-Saharan Africa at the time this variant emerged from there, it's unlikely that mass vaccination campaigns drove selectio

> Given the low vaccination rate in Sub-Saharan Africa at the time this variant emerged from there, it's unlikely that mass vaccination campaigns drove selection pressure in this case. Far more likely that it was a host jump or a long mutation period inside a single immuno-compromised individual. Perhaps, but it's my understanding that Omicron was first observed in diplomats that had already received multiple vaccinations. See: https://www.nytimes.com/2021/12/03/world/botswana-diplomats-omicron-europe.html https://www.nytimes.com/2021/12/03/world/botswana-diplomats-...