[burger]

And here it is... the first randomized, placebo-controlled trial of hydroxychloroquine, this in use as post-exposure prophylaxis

I say give the authors a Nobel Prize just for doing a randomized placebo-controlled study on covid-19.  Pubmed only lists 12 such studies on any drug for covid-19 (there may be more preprints out there).

[burger]

And here it is... the first randomized, placebo-controlled trial of hydroxychloroquine, this in use as post-exposure prophylaxis

I say give the authors a Nobel Prize just for doing a randomized placebo-controlled study on covid-19.  Pubmed only lists 12 such studies on any drug for covid-19 (there may be more preprints out there).