1. Department of Pediatrics, Division of Infectious Diseases
2. Infectious Disease Division, Connecticut Department of Public Health, Hartford, Connecticut
3. Epidemic Intelligence Service Program
4. Department of Pediatrics, Division of Hematology/Oncology
5. Department of Laboratory Medicine, Yale-New Haven Hospital, New Haven, Connecticut
6. Department of Internal Medicine and the Clinical Epidemiological Research Center, VA Connecticut Healthcare System, West Haven, Connecticut
7. Internal Medicine
8. Epidemiology and Public Health, Yale University School of Medicine, New Haven, Connecticut
9. Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia