No improvement in death rate for COVID-19 patients who received hydroxychloroquine. eurekalert.org. May 22, 2020. In an observational analysis of almost 100,000 hospitalized COVID-19 patients of whom nearly 15,000 received hydroxychloroquine or chloroquine, patients had worse outcomes and heightened risk of ventricular arrythmias. A research team led by investigators from Brigham and Women’s Hospital has […]