1. COVID-19 Emergency Response, Centers for Disease Control and Prevention, Atlanta, Georgia
2. Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
3. Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
4. US Public Health Service, Rockville, Maryland
5. Immunization Services Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
6. Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia
7. Division of Nutrition, Physical Activity, and Obesity, National Center for Chronic Disease Prevention and Health Promotion, Atlanta, Georgia