Which country has approved convalescent plasma is the method to treat people who are critically ill with COVID-19?

Which country has approved convalescent plasma is the method to treat

1.	Which country has approved convalescent plasma is the method to treat people who are critically ill with COVID-19?
Answer» The US Food and Drug Administration (USFDA) approved Convalescent plasma is the method to treat people who are critically ill with COVID-19. Convalescent plasma refers to the plasma extracted from those who are recovering from coronavirus (COVID-19). To run the process the doctors must get approval over the telephone.