Hydroxy re re visited., page-342

Sth Korea I believe were among the first to use HCQ and then others followed basically IMHO by trial and error due to the fact "there was nothing else and there still isn't"

Of course there are those who say that it will cure anything but IMHO there is enough practical evidence by those who have, and are using it to warrant a "PROPER" study into it, but any effort to do proper independent testing gets shut down by wild rumours