1. Division of Infectious Diseases, Department of Internal Medicine, and Department of Microbiology and Immunology; University of Texas Medical Branch; Galveston Texas
2. Department of Neuroscience and Department of Neurology; University of Rochester School of Medicine; Rochester New York
3. Department of Medicine; University of Missouri-Kansas City School of Medicine; Kansas City Missouri
4. Division of Infectious Diseases and Immunology, Department of Medicine; New York University School of Medicine; New York New York