1. Division of Pulmonary and Critical Care, Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 35015, Korea.
2. Infection Control Convergence Research Center, Chungnam National University School of Medicine, Daejeon 35015, Korea.
3. Department of Microbiology, Chungnam National University School of Medicine, Daejeon 35015, Korea.
4. Division of Dermatology, Department of Medicine, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095, USA.
5. Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA.
6. Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Korea.