Today, if there is a known vaccine treatment for a disease, the medical establishment considers it unethical to withhold that drug from trial participants, as would happen in a placebo group.
I think we gotta go a step further then and also ensure exposure to the disease the vaccine is purported to mitigate to some relevant sample group that includes (of course) part of the control group.
I think we gotta go a step further then and also ensure exposure to the disease the vaccine is purported to mitigate to some relevant sample group that includes (of course) part of the control group.
It’s just good science.