COVID-19
The newest clinical trial into hydroxychloroquine has proved unsuccessful in treating coronavirus patients.
A recent study was published in the journal Annals of Internal Medicine and showed the results of a randomised study conducted between 22 March and 20 May. Conducted by researchers at the University of Minnesota, 491 patients were either given hydroxychloroquine or a placebo within the first four days of them showing coronavirus symptoms.
Image caption: U.S. Army photo by Jason W. Edwards