LONDON, June 30 (Reuters): A global trial designed to test whether the anti-malaria drugs hydroxychloroquine and chloroquine can prevent infection with COVID-19 is to restart after being approved by Britis

LONDON/GENEVA, June 18 (Reuters): Large multi-country trials of the combination HIV drug lopinavir/ritonavir to treat COVID-19 have recruited thousands of patients and the World Health Organization is now