1. Travelers’ Advice and Immunization Center, Massachusetts General Hospital
2. Harvard Medical School
3. Biostatistics Center, Massachusetts General Hospital, Boston
4. Travel and Immunization Center, Northwestern Memorial Hospital, Chicago, Illinois
5. Travel Medicine Clinic, Kaiser Permanente Honolulu, Hawaii
6. Travel Medicine and Immunization Clinic, University of California, San Francisco
7. Keystone Travel Medicine, Lehigh Valley Health Network, Allentown, Pennsylvania
8. Travel and Immunization Center, St. Luke’s–Roosevelt
9. Bronx Center for Travel and International Health, Albert Einstein College of Medicine, New York, New York
10. Travel Clinic, Division of Infectious Diseases, Department of Medicine, University of California–San Diego School of Medicine, La Jolla
11. New York Center for Travel and Tropical Medicine, Cornell University, New York, New York
12. International Travel Medicine Clinic, University of Southern California, Los Angeles
13. DeKalb County Board of Health Travel Services, Decatur, Georgia
14. Mayo Clinic, Jacksonville, Florida
15. HealthPartners Travel Medicine Clinics, St. Paul, Minnesota
16. Emory TravelWell, Emory University, Atlanta, Georgia
17. Infectious Diseases and Travel Medicine, Georgetown University, Washington, District of Columbia
18. Johns Hopkins Travel and Tropical Medicine, Division of Infectious Diseases, Johns Hopkins School of Medicine, Baltimore, Maryland
19. Tulane University, New Orleans, Louisiana
20. International Travel Clinic, University of Utah, Salt Lake City
21. Division of Global Migration and Quarantine, Centers for Disease Control and Prevention, Atlanta, Georgia