1. Baylor National Institute of Allergy and Infections Diseases (NIAID) Cooperative Center for Translational Research on Human Immunology and Biodefense and Baylor Institute for Immunology Research, Dallas, TX;
2. Division of Pediatric Infectious Diseases, University of Texas Southwestern Medical Center and Children's Medical Center Dallas;
3. General Clinical Research Center, Rockefeller University, New York, NY