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There are more than enough people who don't want to take the vaccine for pre-existing reasons that they could have formed a control group who promised not to ta
by native_samples 5y ago
There are more than enough people who don't want to take the vaccine for pre-existing reasons that they could have formed a control group who promised not to take it, and would stick to it.
- thisiszilff 5y agoFor a double blind randomized trial, no one can know who's in what group. If an individual isn't willing to get the vaccine then they'd be excluded by default.