[pariahHN]

I was also wondering about this. No discussion of the likelihood of someone who knows about their condition and is being treated for it being exposed in the first place. If they had a lower likelihood in the first place then it would also look like HCQ had the desired effect.

I am interested by a couple of their references, specifically regarding the possibility of HCQ only working as a prophylactic after a sufficiently long period of exposure. That could be a contributor to difficulty in replication.