1. Division of Global Migration and Quarantine, Centers for Disease Control and Prevention, Atlanta, Georgia;
2. International Organization for Migration, Bangkok, Thailand;
3. Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia;
4. International Organization for Migration, Washington, DC;
5. Laboratory of Parasitic Diseases, National Institutes of Health, Bethesda, Maryland;
6. Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota