Synopsis

As a definitive treatment for COVID-19 remains elusive, plasma therapy has emerged as a significant intervention. Bill Whitaker investigates how physicians are utilizing the blood plasma of those who have recovered from the virus, harnessing the virus-fighting antibodies it contains to develop this potentially life-saving therapy; produced by Michael Karzis, Julie Holstein and Howard L. Rosenberg. Lesley Stahl reports on untreated sewage flowing from Tijuana, Mexico, into the coastal lands and w