1. Division of Infectious Disease, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung
2. Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung
3. Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung
4. Program in Tropical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
5. Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
6. Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand
7. Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung