1. Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
2. Carretera de Canyet, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain
3. Department of Medicine, Stritch School of Medicine, Loyola University Chicago, Maywood, Illinois, USA
4. Department of Medicine, University of Washington, Seattle, Washington, USA
5. Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana, USA
6. Richard M. Fairbanks School of Public Health, Indianapolis, Indiana, USA
7. Department of Global Health, University of Washington, Seattle, Washington, USA
8. Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA
9. Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA