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Who is in the control group now? You can't exactly exclude people who have prior contact with older variants or that would mislead populations with high prior
by peteradio 5y ago
Who is in the control group now? You can't exactly exclude people who have prior contact with older variants or that would mislead populations with high prior exposure. Also how do they factor in prior vaccination? Are they going to have high powered arms for all these different subtypes of immune response?
- IgorPartola 5y agoIf you read the article, that is addressed there.
- peteradio 5y agoI'm sorry I don't see it. I only see mention of dividing groups by unvaccinated/vaccinated. That doesn't give indication to prior exposure at all.