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by a45a33s 1615 days ago
the covid vaccine trials had no control groups either
1 comments
rsfern 1615 days ago
They were all doubly blinded placebo controlled trials…

Are you talking about how they unblinded the study after efficacy results started coming in?

link
a45a33s 1614 days ago
yes i am talking about how they got rid of the control groups once it appeared to be working
link