1. Department of Internal Medicine, Faculty of Medicine, University of Sumatera Utara, H. Adam Malik Hospital, Medan, Indonesia
2. Department of Clinical Pathology, Faculty of Medicine, Universitas Padjadjaran, Dr. Hasan Sadikin General Hospital, Bandung, Indonesia
3. Amsterdam Institute for Global Health and Development, Amsterdam, the Netherlands
4. Department of Microbiology, Faculty of Medicine, University of Sumatera Utara, H. Adam Malik Hospital, Medan, Indonesia
5. Department of Medical Microbiology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, the Netherlands
6. Department of Global Health, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, the Netherlands