Donald Trump announced Monday to take hydrochloroquine as a preventive measure against the sars coronavirus. Today, a study of 96,000 patients around the world shows that those treated with this drug have a higher mortality rate.

The hydrochloroquine chloroquine, two drugs against malaria, have no effect on the patients hospitalized for the Covid-19, says Mandeep Mehra, head of the Center for Advanced Heart Disease from the american university of Harvard, quoted Friday in a press release of the university Hospital of Zurich.