1. University of California, Los Angeles, California, USA
2. National Institute of Biomedical Research, Kinshasa, Democratic Republic of Congo
3. Ministry of Health, Kinshasa, Democratic Republic of Congo
4. National Institutes of Health, Bethesda, Maryland, USA
5. World Health Organization, Geneva, Switzerland
6. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
7. World Health Organization, Kinshasa, Democratic Republic of Congo
8. Kinshasa School of Public Health, Kinshasa, Democratic Republic of Congo
9. University of North Carolina, Chapel Hill, North Carolina, USA
10. Bundeswehr Institute of Microbiology, Munich, Germany