1. Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
2. Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
3. Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
4. Center for Translational Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
5. Oral and Craniofacial Biomedicine Program, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
6. Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63130, USA.
7. Duke Human Vaccine Institute, Durham, NC 27701, USA.
8. Department of Computational Mathematics, Science and Engineering, Michigan State University, East Lansing, MI 48824, USA.
9. Department of Statistics and Probability, Michigan State University, East Lansing, MI 48824, USA.
10. Marsico Lung Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
11. Emerging Pathogens Section, Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD 20892, USA.
12. Laboratory of Virology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT 59840, USA.
13. Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
14. Department of Medicine, Duke University School of Medicine, Durham, NC 27701, USA.
15. Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO 63110, USA.
16. Department of Molecular Microbiology, Washington University School of Medicine, Saint Louis, MO 63110, USA.