1. Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee
2. Vanderbilt Epidemiology PhD Program, Vanderbilt University School of Medicine, Nashville, Tennessee
3. Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
4. Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
5. General Dynamics Information Technology Inc, Falls Church, Virginia
6. Division of Pediatric Infectious Diseases, Children’s Mercy Kansas City, Kansas City, Missouri
7. Department of Pediatrics, University of Pittsburgh School of Medicine, University of Pittsburgh Medical Center Children’s Hospital of Pittsburgh, Pittsburgh, Pennsylvania
8. Department of Pediatrics, Baylor College of Medicine, Houston, Texas
9. Texas Children’s Hospital, Houston
10. Division of Infectious Diseases, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
11. Department of Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester, New York
12. Department of Pediatrics, UCLA (University of California, Los Angeles) Mattel Children’s Hospital, UCLA, Los Angeles
13. Seattle Children’s Hospital, Department of Pediatrics, University of Washington School of Medicine, Seattle
14. Department of Pathology and Laboratory Medicine, Children’s Mercy Kansas City, Kansas City, Missouri
15. and the NVSN Network Investigators