1. Medical Research Unit, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
2. Tropical Disease Centre, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
3. Department of Microbiology, School of Medicine, Syiah Kuala University, Banda Aceh, Indonesia
4. Eijkman Institute for Molecular Biology, Jakarta, Indonesia
5. Institute of Occupational Medicine, Social Medicine and Environmental Medicine, Goethe University, Frankfurt am Main, Germany