1. Division of Pediatric Infectious Diseases, Bronx-Lebanon Hospital Center, Albert Einstein College of Medicine of Yeshiva University, Bronx, New York;
2. Faculty of Medicine, College of Physicians and Surgeons, Columbia University, New York, New York;
3. Center for Geographic Medicine, Chaim Sheba Medical Center Tel Hashomer and Sakler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel;
4. Department of Pediatrics and Travel Medicine, Faculty of Medicine, Pontifical Catholic University of Chile, Santiago, Chile;
5. Clinic of Infectious and Tropical Diseases, University of Brescia, Brescia, Italy;
6. Maxwell Finland Laboratory for Infectious Diseases, Boston Medical Center, Boston, Massachusetts; and
7. Department of Medicine and Pediatrics, University of Minnesota, Minneapolis, Minnesota