> I don't think anyone has really proposed this. They seem to talk about it right near the top of major news stories, so I guess they are proposing it: https:

> I don't think anyone has really proposed this. They seem to talk about it right near the top of major news stories, so I guess they are proposing it: https://www.bbc.com/news/health-54612293 https://www.bbc.com/news/health-54612293 You might also get useful information about how people's immune systems react, when you give them too little of the virus to get infected. It's not only about figuring out the dose for the main trial. It also could have been done 6 months ago...