1. Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany
2. Institute of Clinical Infectious Diseases, 108 Military Central Hospital, Hanoi, Vietnam
3. Vietnamese-German Center for Medical Research (VG-CARE), Hanoi, Vietnam
4. Department of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam
5. German Center for Infection Research, Department for Gastroenterology, Hepatology, and Endocrinology, Medical School Hannover, Germany
6. Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
7. Faculty of Medicine, Duy Tan University, Da Nang, Vietnam