1. Department of Laboratory Animal Medicine, College of Veterinary Medicine, Seoul national University, Seoul, Korea.
2. Department of Microbiology and Immunology, College of Medicine, Seoul National University, Seoul, Korea.
3. Department of Biochemistry, College of Medicine, Konyang University, Daejeon, Korea.
4. Department of Science Education, Jeju National University, Jeju, Korea.
5. College of Veterinary Medicine, Kangwon National University, Chuncheon, Korea.
6. Biological Resources Coordination Division, National Institute of Biological Resources, Incheon, Korea.
7. Biosafety Research Team, Environmental Health Research Department, National Institute of Environmental Research, Incheon, Korea.