Do you mean this "virus would not be a vaccine from a regulatory perspective"? In that case it is just another vaccine approach, but one that you alledge falls outside the current regulations. Do you think the regulations need to change due to the emergency?

This is a question that really is unimportant at this point. What matters is what we can do today.

It's extremely important because it's a question a lot of people are going to be asking. You'll need a good answer as to why this approach should not be subject to similar regulations as vaccines otherwise this will go nowhere.

Is the FDA regulating the spread of the dangerous version?

More seriously there is nothing for the FDA to regulate here. It is a natural virus spreading in a natural way.

How can you claim it would be spread in a natural way? The intention is to spread it deliberately.

Because the attenuate virus we are looking for would be one that can spread naturally. Of course humans might choose to help it along once it is found by say hanging out with an infected person. Lots of options here