Affiliation: | 1. Division of Infectious Diseases, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan Division of Geriatrics and Gerontology, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan Center of Infection Control, National Cheng Kung University Hospital, Tainan, Taiwan Department of Medicine, National Cheng Kung University Medical College, Tainan, Taiwan;2. Department of Emergency Medicine, National Cheng Kung University Hospital, Tainan, Taiwan;3. Division of Infectious Diseases, National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Tainan, Taiwan;4. Division of Infectious Diseases, National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan;5. Division of Infectious Diseases, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan Center of Infection Control, National Cheng Kung University Hospital, Tainan, Taiwan;6. Division of Infectious Diseases, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan Division of Geriatrics and Gerontology, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan;7. Division of Infectious Diseases, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan |