Well quite a few countries had stopped chloroquine use even before this study because they found little to no benifit, but significantly increased risks (not ba

Well quite a few countries had stopped chloroquine use even before this study because they found little to no benifit, but significantly increased risks (not based on studies because they are difficult to do, but based on evidence by the treating doctors) , Sweden stopped IIRC mid april. IMO Germany and France also stopped sometime in May. Several smaller studies have also previously showed that chloroquine has increased risks and very little benefit (a number of them actually interrupted the studies because of the high risks). As much as I was hopeful when I first heard about it, I'm now very sceptical. It also doesn't help that Didier Raoult has a bit of a spotty past with ethical research conduct.