1. National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, USA
2. National Institutes of Health Clinical Center, Bethesda, Maryland, USA
3. Johns Hopkins School of Medicine, Baltimore, Maryland, USA
4. Kaiser Permanente-Downey Medical Center, Downey, California, USA
5. National Institute for Communicable Diseases and University of the Witwatersrand, Johannesburg, South Africa
6. Centers for Disease Control and Prevention, Atlanta, Georgia, USA
7. Pasteur Institute, Paris, France
8. NSW Health Pathology, Westmead Hospital, Westmead, New South Wales, Australia
9. The University of Sydney, Westmead Institute for Medical Research, Westmead Hospital, Sydney, Australia
10. Changzheng hospital, Shanghai, China
11. Duke University, Durham, North Carolina, USA