The use of the antiparasitic medication Ivermectin to reduce the risk of Covid-19 is controversial, but some integrative medical doctors still use it. In this interview, immunologist and integrative health expert Heather Zwickey, PhD, tackles the topic of the off-label use of Ivermectin. She also discusses vaccine shedding, variants, and herd immunity. Zwickey currently leads a National Institutes of Health–funded clinical research training program focused on integrative medicine research and is a professor of immunology and chair of the Department of Health Sciences at the National University of Natural Medicine in Portland, OR.  About the Expert Heather Zwickey, PhD, is a professor of immunology and chair of the Department of Health Sciences at the National University of Natural Medicine in Portland, Oregon. She launched the Helfgott Research Institute, which advances the science of natural medicine. Zwickey founded the school of graduate studies and developed masters programs in research, nutrition, and global health. Zwickey has received the Champion of Naturopathic Medicine Award from the American Association of Naturopathic Physicians. She currently leads a National Institutes of Health–funded clinical research training program focused on integrative medicine research and studies the gut-brain axis in neuroinflammation.