With all due respect. I take issue with the use of convalescent plasma. How do we know that is really safe or effective. You can't trust any data that is more than 100 years old. Nobody is alive who can even vouch for it Dr P voiced concerns about the safety of our blood supply. the safety of our blood supply. We must must not forget the damage done by unsafe transfusions during the early days of the HIV epidemic. Each patients plasma is unique and can present different safety issues. Just because we can't detect short term SAEs doesn't mean they wont emerge 20 years later just as can happen with vaccines.