related_tweet: @devinab21 convalescent plasma therapy for moderate or severe covid-19 doesnt work.
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  signed one of the people who did the first completed rct on convalescent plasma therapy for covid-19.