1. Center for Research on Influenza Pathogenesis (CRIP), New York, New York, USA
2. Icahn School of Medicine at Mount Sinai, New York, New York, USA
3. Centers of Excellence for Influenza Research and Surveillance (CEIRS)
4. Department of Viroscience, Erasmus Medical Center, Rotterdam, the Netherlands
5. Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, USA
6. St. Jude Center of Excellence for Influenza Research and Surveillance, Memphis, Tennessee, USA
7. Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
8. Johns Hopkins Center of Excellence for Influenza Research and Surveillance, Baltimore, Maryland, USA
9. Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
10. W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
11. New York Influenza Center of Excellence (NYICE), New York, New York, USA
12. Department of Medicine, the Knapp Center for Lupus and Immunology Research, Section of Rheumatology, the University of Chicago, Chicago, Illinois, USA
13. Emory-UGA Center of Excellence for Influenza Research and Surveillance, Atlanta, Georgia, USA
14. Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
15. Emory Vaccine Center, Emory University School of Medicine, Atlanta, Georgia, USA
16. Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA