William Morice II, M.D., Ph.D., chair of the Department of Laboratory Medicine and Pathology at Mayo Clinic and president of Mayo Clinic Laboratories, joins the "Answers From the Lab" podcast for his weekly leadership update. In this episode, Dr. Morice and Bobbi Pritt, M.D., discuss vaccine passports. They review how proof of vaccination could be used along with other tools, like testing, to help curb the spread of COVID-19.