In the absence of other viable treatments, the efficiency isn't really important. Frankly, if it is only modestly effective, it should still be given to everyo

In the absence of other viable treatments, the efficiency isn't really important. Frankly, if it is only modestly effective, it should still be given to everyone without contraindications. Efficiency only becomes important in a year or two when there are competing therapies. When the choices are Chloroquine or Hopes and Prayers, Chloroquine is the obvious choice (for those that don't have the contraindications, of course -- for those patients, you'd need more evidence to know that the benefits outweighed the risks)