I'm kind of curious how the vaccine trial works. They're going to give it to 30,000 people, who are presumably paid volunteers. Do they then use national statistics as a control group? I presume they're not paying another 30,000 people to be a control group.
But if you're in the vaccine group, I wonder if you behave differently. Do you have more confidence to be out and about? Not wear a mask? I guess they're probably asking them a lot of behavioral questions, but then they'd also have to ask some control group the same behavioral questions. Maybe the control group is just a public survey?
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