I don't know the answers to those questions Archie. Sorry.

I don't worry about it much because we have treatment on hand should we get it again.

I will say I have been a little more careful about not getting around big crowds since my lung injury. Covid on top of broken ribs and lung injury I didn't figure would be a good thing. That said I have not become a complete hermit and do get out some around people. I just do it in a more careful way and avoid big crowds.