1. Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
2. Department of Clinical Research, Westat , Rockville, Maryland , USA
3. Division of Human Development and Disability, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
4. Department of Research, Health Partners Institute , Minneapolis, Minnesota , USA
5. Department of Biomedical Informatics, Vanderbilt University Medical Center , Nashville, Tennessee , USA
6. Section of Pediatric Infectious Diseases, Department of Pediatrics, Baylor Scott & White Health , Temple, Texas , USA
7. Department of Medical Education, Texas A&M University College of Medicine , Temple, Texas , USA
8. Center for Biomedical Informatics, Regenstrief Institute , Indianapolis, Indiana , USA
9. School of Medicine, Indiana University , Indianapolis, Indiana , USA
10. School of Medicine, University of Colorado Anschutz Medical Campus , Aurora, Colorado , USA
11. Division of Infectious Diseases and Clinical Epidemiology, Intermountain Healthcare , Salt Lake City, Utah , USA
12. Department of Science Programs, Kaiser Permanente Center for Health Research , Portland, Oregon , USA
13. Department of Biomedical Informatics, Columbia University Irving Medical Center , NewYork, New York, USA
14. Medical Informatics Services, NewYork-Presbyterian Hospital , NewYork, New York, USA
15. Kaiser Permanente Vaccine Study Center, Kaiser Permanente Northern California Division of Research , Oakland, California , USA
16. Department of Emergency Medicine, Children’s Minnesota , Minneapolis, Minnesota , USA
17. Coronavirus and Other Respiratory Viruses Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA