A weekend that began with President Trump accusing the FDA on Twitter of stalling the progress of treatments for COVID-19 ended with a press conference in which Trump congratulated agency commissioner Stephen Hahn for issuing a new emergency approval.
That so-called emergency use authorization, or EUA, is for convalescent plasma, which comes from donor samples of blood from COVID-19 patients and includes the antibodies their bodies formed to fight off infection with SARS-CoV-2.
