> With countries having 50% vaccination rate, there's always place to brew new variants that might or not be resistant to vaccines and medicine. Is it true tha

> With countries having 50% vaccination rate, there's always place to brew new variants that might or not be resistant to vaccines and medicine. Is it true that new variants are more likely to evolve among more unvaccinated people? US has had significantly more cases that South Africa (per 100k people) for most of the time. I assume mutations are more likely to happen in places with more cases. Not sure if vaccine plays a selective pressure on vaccine mutation (bad or otherwise). https://ig.ft.com/coronavirus-chart/?areas=usa&areas=zaf&areasRegional=usny&areasRegional=usvt&areasRegional=usnd&areasRegional=usky&areasRegional=usfl&areasRegional=usmi&cumulative=0&logScale=0&per100K=1&startDate=2021-01-01&values=cases https://ig.ft.com/coronavirus-chart/?areas=usa&areas=zaf&are...