Treatments / Specialities

• Infectious diseases (bacteria, viruses, fungi, parasites), 
• Primary immune deficiency, 
• Tuberculosis, 
• Fever of unknown origin, 
• Travel medicine, 
• Tropical medicine

Membership

• Korea
  2009 - Present Member of Committee on Infectious Diseases, Korean Pediatric Society
  (Contributor for Pediatric Immunization Guideline)
  2012 - Present Board member of Korean Society of Infectious Diseases
  2012 ? 2017 Director, Academic affairs, Korean Society of Pediatric Infectious Diseases
  2019 ? Present Chair, International affairs, Korean Society of Infectious Diseases
  Member, Korean Association of Immunologists
  Member, Korean Society of Bone and Marrow Transplantation

• International
  Member, Infectious Diseases Society of America
  Member, Pediatric Infectious Diseases Society (US)
  Member, International Immunocompromised Host Society
  Member, European Society for Paediatric Infectious Diseases
  Member, European Society for Immunodeficiency
  Member, Asia Pacific Society for Immunodeficiency
  2020- Chair for working party on Registry and Research
  Executive board member
  Member, American Society for Transplantation and Cellular Therapy