1. Emory University School of Medicine, Atlanta, Georgia, USA
2. Emory University Rollins School of Public Health, Atlanta, Georgia, USA
3. Atlanta Veterans Affairs Medical Center, Decatur, Georgia, USA
4. Emory Vaccine Center, Atlanta, Georgia, USA
5. Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
6. University of California, San Francisco, San Francisco, California, USA
7. Case Western Reserve University, Cleveland, Ohio, USA
8. University of Alabama at Birmingham, Birmingham, Alabama, USA
9. Harvard Medical School, Boston, Massachusetts, USA
10. National Institutes of Health, Bethesda, Maryland, USA
11. Johns Hopkins University, Baltimore, Maryland, USA
12. Duke University, Durham, North Carolina, USA