06:06Newsday24/08/2020 05:06 GMT: Coronavirus: US allows blood plasma treatmentBBC World Service Duration: 53 minutes Mon 24th Aug 2020, 06:06 on BBC World Service OnlineAvailable for over a yearListen nowLive news, business and sport from around the world. Show more GenresNewsFormatsMagazines & ReviewsBrandNewsday Source: BBC Online