 This presentation is about the COPCOV study. COPCOV is a double-blind placebo-controlled randomized trial of chemo-prevention or chemoprophylaxis with chloroquine or hydroxychloroquine to see whether these drugs can prevent COVID-19 illness. It's a simple trial which will take place over three months. Why do we need this trial? We need this trial because as many of you will have heard through the press, through the news, and through numerous reports, there are claims that these drugs might be beneficial in COVID-19 infections in either prevention or treatment. The truth is we really do not know whether if you take them you're better off or worse off. We really don't know. These are old drugs. They've been used for many years. So we're reasonably confident that they will be safe. But we just don't know whether they're going to be effective. So this large, randomized, double-blind placebo-controlled trial should give us the answers. And I hope by the end of the year, we will all know whether or not you and other health care workers should or should not be taking these drugs.