WHO cautious on COVID-19 plasma as U.S. issues emergency authorization
JOHN MILLER THE World Health Organization was cautious about endorsing the use of recovered COVID-19 patients' plasma to treat those who are ill, saying evidence it works remains "low quality" even as the United States issued emergency authorization for such therapies. So-called convalescent plasma, which has long been used to treat diseases, has emerged as the latest political flashpoint in the race to find therapies for COVID-19. The U.S. Food & Drug Administration (FDA) on Sunday authorized its use after President Donald Trump blamed the agency for impeding the roll-out of vaccines and therapeutics for political reasons. The technique involves…