Kary Mullis, Cancel Culture and Covid 19. What was Dr. Karry Mullis' (inventor of PCR test) background and why did he come into conflict with much of the medical and scientific establishment? Dr. Sam Bailey is a medically trained doctor and research physician who makes health videos on questions from her viewers. She researches and covers common medical conditions, but will also tackle controversial health issues. Dr Bailey is co-author of the book "Virus Mania." See also "Covid Tests: You Will Be Shocked!" on this XFILES channel.