1. Division of Preparedness and Emerging Infections, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA
2. Division of Infectious Diseases, Beth Israel Deaconess Medical Center, Harvard Medical School , Boston, Massachusetts , USA
3. Clinical Professor of Pediatrics, Rutgers Robert Wood Johnson School of Medicine, Monmouth Medical Center , Long Branch, New Jersey , USA
4. Oak Ridge Institute for Science and Education Centers for Disease Control and Prevention Fellowship Program , Atlanta, Georgia , USA