There is a threat to America’s public health that is as insidious as the spread of COVID. It runs through social media.  It surfaces in cable news, podcasts, newspapers - and even in the public statements of elected officials and some health professionals. This disease of disinformation causes confusion, sickness, even death.  And no one seems to be able to stop it.  It is a pandemic in its own right. Today we are going to look at what disinformation is, where it's coming from and how to hold those responsible accountable.