Trump announces plasma treatment authorized for COVID-19

President Donald Trump speaks, accompanied by Food and Drug Administration Commissioner Dr. Stephen Hahn, center, during a media briefing in the James Brady Briefing Room of the White House, Sunday, Aug. 23, 2020, in Washington.(AP Photo/Alex Brandon)

WASHINGTON — President Donald Trump announced emergency authorization to treat COVID-19 patients with convalescent plasma — a move he called “a breakthrough,” one of his top health officials called “promising” and other health experts said needs more study before it’s celebrated.