Second French Study Suggests Malaria Drug Effective in Treating COVID-19 Patients

French professor Didier Raoult, director of IHU Mediterranee Infection Institute, in his office in Marseille, France, on March 23, 2020. Gerard Julien/AFP via Getty Images

A second French study of the malaria drug hydroxychloroquine suggests the drug is effective in treating COVID-19 patients, researchers said.

The first study stoked controversy because it wasn’t peer-reviewed or published in a scientific journal. The second study is also preprint.