Trying to make heads or tails of COVID vaccines? We have a guru to help. This week, Dr. Heather Zwickey lays everything out in plain English as she explains differing vaccine responses, how the vaccine works, autoimmunity, boosters, and more. Each Thursday, join Dr. Raja and Dr. Hadar, board certified dermatologists, as they share the latest evidence based research in integrative dermatology. To continue learning about COVID vaccine mechanisms of action and how immunomodulatory medications may modify the immune response to COVID vaccination, attend Dr. Zwickey's LearnSkin CME course here.   Heather Zwickey, PhD, earned a Ph.D. in Immunology and Microbiology from the University of Colorado Health Sciences Center. Dr. Zwickey went on to complete a postdoctoral fellowship and teach medical school at Yale University. At the National University of Natural Medicine in Portland, OR, Dr. Zwickey launched the Helfgott Research Institute and established the School of Graduate Studies, developing programs in research, nutrition, and global health among others. She currently leads an NIH funded clinical research training program. She teaches at NUNM, the University of Western States, and Maryland University of Integrative Health. At Helfgott Research Institute, Dr. Zwickey applies her immunology expertise to natural medicine with a specific interest in the gut-brain axis in inflammation.