[danieltillett]

If you were to deliberately go and hangout with someone you know is infected with the attenuated strain then a lot, if you catch it because your neighbour did this then none.

This discussion is really a distraction as I don’t think a “grass roots” spread would be the way any such strain would be spread. I think the regulatory agencies would look at the data collected from the natural spread and use this to approve the strain for use.