04-26-2021, 02:40 AM
PeterB wrote:
If, as the Pfizer/Moderna data suggested, one shot gave 85% protection, that's still a lot of people who will have gotten vaccinated but will still end up getting sick. When those people get sick, the question is whether the virus' mutations will be selected for, in terms of host immune system evasion. Then we end up with a virus for which the vaccines might be far less effective or totally ineffective.
Would that be artificial or natural selection?
tartrek2: