1. Danielle L. Moulia and Thomas J. Fitzgerald are with IHRC, Inc and Immunization Services Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention (CDC), Atlanta, GA. Stephanie A. Dopson and Sara J. Vagi are with the Division of State and Local Readiness, Office of Public Health Preparedness and Response, CDC. Amy Parker Fiebelkorn and Samuel B. Graitcer are with Immunization Services Division, National Center for Immunization and Respiratory Diseases...