The World Health Organization has suspended testing of hydroxychloroquine to treat COVID-19 amid possible safety concerns. The antimalarial drug has been repeatedly touted by President Trump, who last week elicited shock and condemnation by claiming he has been taking hydroxychloroquine preventively. A new study in The Lancet that looked at over 96,000 hospitalized patients found those who were given hydroxychloroquine had a significantly higher death rate than those who were not.