1. Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520, USA.
2. Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA.
3. Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA.
4. Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA.
5. Department of Pathology, Yale School of Medicine, New Haven, CT 06520, USA.
6. Howard Hughes Medical Institute, Yale School of Medicine, New Haven, CT 06520, USA.
7. Section of Rheumatology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06520, USA.
8. Institut für Medizinische Mikrobiologie und Hygiene, Institute of Virology, University Medical Center Freiburg, Hermann-Herder-Strasse 11, 79104 Freiburg, Germany.