OriginalTweet: Not to be a cynic but
  while Remdedivir has showed promise as a Treatment, it is Not Proven an Immunizer!
  Warning!   Caution!
  U.S. plans ‘Operation Warp Speed’ for a Covid-19 vaccine; Gilead vows remdesivir... https://t.co/XxaFEus3tA via @statnews