What is convalescent plasma? Trump announced that the FDA authorized emergency use of convalescent plasma for coronavirus treatment. The treatment has already been administered to over 70,000 Americans, but does it work? Infectious disease specialist Dr. William Schaffner of Vanderbilt University School of Medicine joins us live to break...

What is convalescent plasma? Trump announced that the FDA authorized emergency use of convalescent plasma for coronavirus treatment.The treatment has already been administered to over 70,000 Americans, but does it work? Infectious disease specialist Dr. William Schaffner of Vanderbilt University School of Medicine joins us live to break down...