Breadcrumb Home News MDH announces new app to provide proof of vaccine MDH announces new app to provide proof of vaccine September 15, 2021 Dr. Jennifer Needle, MD, MPH describes the difference between vaccine passports and MDH's new vaccine report app. Previous News Interdisciplinary Doctoral Fellow Joins the Center for Bioethics Addressing Mississippi's Maternal Health-Care Shortage Steve Jobs Was Wrong. Finding Work That You Love Might Be the Worst Thing You Can Do