I don’t think it is weird we are talking about it now. The last year was mostly about getting through it, and only now can we start putting data in context.

I can only say what is needed : a medicine is number one. Making society resilient against airborne viruses and we need absolute data on what tools we have to stop a virus in a room with people.

But last but not least it’s also a behavioral problem (which you allude to from a different angle) where people are making decisions that allow the virus to spread. I talked to a red cross doctor and he said that distancing and masks in a hospital setting is pretty much enough to kill transmission. It was his opinion that truly honoring the guidelines would have stopped it.