1. Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham , Birmingham, Alabama , USA
2. Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington , Seattle, Washington , USA
3. Department of Global Health, University of Washington , Seattle, Washington , USA
4. Department of Medicine, Division of Infectious Diseases, Emory University , Atlanta, Georgia , USA
5. Department of Laboratory Medicine and Pathology, University of Washington School of Medicine , Seattle, Washington , USA
6. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center , Seattle, Washington , USA
7. FHI 360 , Durham, North Carolina , USA
8. National Institute of Allergy and Infectious Diseases, National Institutes of Health , Rockville, Maryland , USA