1 Department of Respiratory Medicine, Nagasaki University Hospital, 1-7-1, Sakamoto, Nagasaki, Japan.
2 Infection Control and Education Center, Nagasaki University Hospital, 1-7-1, Sakamoto, Nagasaki, Japan.
3 Infectious Diseases Experts Training Center, Nagasaki University Hospital, 1-7-1, Sakamoto, Nagasaki, Japan.
4 Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki, Japan.
5 Department of Anesthesiology and Intensive Care Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki, Japan.
6 Department of Pathology, Nagasaki University Hospital, 1-7-1, Sakamoto, Nagasaki, Japan.
7 Department of Laboratory Medicine, Nagasaki University Hospital, 1-7-1, Sakamoto, Nagasaki, Japan.
8 Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki, Japan.