Doctors worry unproven Covid-19 drug will do more harm than good

President Trump's firm stance of "What do you have to lose?" this week about taking hydroxychloroquine for Covid-19 stands in stark contrast to frontline physicians, who are concerned that the unproven drug may end up doing more harm than good. Physicians, who are trained to make recommendations based on good data, are finding it difficult to make a decision about the drug given the lack of evidence to fully support its use against Covid-19. Some doctors are not outright recommending against the drug's use, but are instead outlining to patients and their families the limited evidence available, and letting them make a decision. STAT contributor Allison Bond has more from San Francisco here.