Preeta Kutty, MD, MPH¹, Jacqueline Lawler, MPH, CPH², Elizabeth Rausch-Phung, MD, MPH³, Ikechukwu Ogbuanu, MD, PhD, MPH⁴, Glen Abedi, BS, Jean Hudson, MD, MPH², Debra Blog, MD, MPH³, Rafael Harpaz, MD, MPH⁶, Hardeep Sandhu, MD⁴, Stephen Goodell, RN, BSN, MPH², Cynthia Schulte, RN, BSN³, Albert Barskey, MPH⁶, Huong McLean, MPH, PhD⁶, Marilyn Ejercito, RN, BSN, MS², Barbara Valure, RN, BSN², Lynn Pollock, RN, MSN³, Alan Werzberger, MD⁷ and Kathleen Gallagher, MPH, DSc⁶, 1National Center for Immunization and Respiratory Disease, Centers for Disease Control and Prevention, Atlanta, GA, 2Orange County Health Department, Goshen, NY, 3Bureau of Immunization, New York State Department of Health, Albany, NY, 4Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA, 5Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, 6College of Physicians and Surgeons of Columbia University, New York, NY