National Health & Safety NIH Warns Data On Effectiveness Of Convalescent Plasma In Treating COVID-19 Is Weak 4:04pm August 19, 2020 by Joe Palca Health Medical Treatments National Share URL copied to clipboard! Copyright 2020 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered National Vermont Judge releases Columbia University student Mohsen Mahdawi World News U.S. supports ally Israel at the International Court of Justice by Carrie Kahn 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate