1. Division of Infectious Diseases and Global Public Health, Department of Medicine, University of California, San Diego, La Jolla, California, USA
2. Department of Microbiology and Molecular Biology, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
3. Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, Kansas, USA