1. Office of the Director, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, USA
2. EcoHealth Alliance, New York, New York, USA
3. Center for the History of Medicine, The University of Michigan Medical School, Ann Arbor, Michigan, USA
4. Viral Pathogenesis and Evolution Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland, USA