Do you consider use of convalescent plasma early in disease course in COVID-19 induced ARDS in mechanically ventilated patients?

At this time, I have not adopted the use of convalescence plasma in COVID-19-induced ARDS. I have read the Belgian study but I believe more evidence from other similar studies is needed before we accept it as standard of care. I have not seen any COVID-19-induced ARDS for almost 18 months.