1. Department of Environmental Health and Engineering, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
2. Division of Infectious Diseases, Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
3. Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
4. Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
5. Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
6. Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
7. Department of Chemical and Biomolecular Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland, USA
8. Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
9. Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Baltimore, Maryland, USA
10. Division of Immunology, Department of Pathology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
11. Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
12. The Hope Clinic of the Emory Vaccine Center, Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Decatur, Georgia, USA
13. Institute for Interdisciplinary Salivary Bioscience Research, University of California at Irvine, Irvine, California, USA
14. Salimetrics, LLC, Carlsbad, California, USA