Known allergy to the study drug (aminoquinolines). flu-related symptoms at the time of inclusion. Previous or current SARS-Cov2 infection confirmed. Known pregnancy (no pregnancy test required). History of retinopathy. ECG changes with enlargement of the QT interval. Weight less than 40 kg Participant with any immunosuppressive condition or hematological disease. Treatment with drugs that can prolong the QT interval or increase the number of adverse events in the last month before randomization for more than 7 days, including: azithromycin, chlorpromazine, cisapride, clarithromycin, domperidone, droperidol, erythromycin, halofantrine, haloperidol, lumefantrine, mefloquine, methadone, pentamidine, procainamide, cimetidine, quinidine, quinine, sotalol, sparfloxacin, thioridazine, amiodarone, Dapsone

Known allergy to the study drug (aminoquinolines). flu-related symptoms at the time of inclusion. Previous or current SARS-Cov2 infection confirmed. Known pregnancy (no pregnancy test required). History of retinopathy. ECG changes with enlargement of the QT interval. Weight less than 40 kg Participant with any immunosuppressive condition or hematological disease. Treatment with drugs that can prolong the QT interval or increase the number of adverse events in the last month before randomization for more than 7 days, including: azithromycin, chlorpromazine, cisapride, clarithromycin, domperidone, droperidol, erythromycin, halofantrine, haloperidol, lumefantrine, mefloquine, methadone, pentamidine, procainamide, cimetidine, quinidine, quinine, sotalol, sparfloxacin, thioridazine, amiodarone, Dapsone