> Not a doctor or well read on the subject but I have seen some studies claiming it does. Your source is quite old and only provides baseless speculation about

> Not a doctor or well read on the subject but I have seen some studies claiming it does. Your source is quite old and only provides baseless speculation about an hypothesis where hydroxychloroquine might play a role in treating covid-19 effectively. If you invest some time searching for the topic you'll find a multitude of studies which failed to find any evidence that hydroxychloroquine has any effect at all. Taken for example, this article. https://www.thelancet.com/journals/lanrhe/article/PIIS2665-9913(20)30390-8/fulltext https://www.thelancet.com/journals/lanrhe/article/PIIS2665-9... This paper might not have been accepted by the Wall Street Journal but in it the author's point out tjat multiple high-quality studies subsequently showed no benefit of hydroxychloroquine use as post-exposure prophylaxis3 or as a COVID-19 treatment. The author's proceed to address the hypothesis that prior long term treatment with hydroxychloroquine by autoimmune disease patients was a factor, and cite a study that "found no significant difference in standardised cumulative COVID-19 mortality associated with hydroxychloroquine use". The author's then state quite unambiguously the following: >These findings are not surprising given the mounting body of literature suggesting no clinical benefit for hydroxychloroquine use against COVID-19. However, this study is important in addressing the potential role, or lack thereof, for hydroxychloroquine as a preventive medication for this novel infectious disease.