Nima Rezaei is Associate Researcher in Department of Allergy and Clinical Immunology of Children Medical Center, Immunology, Asthma and Allergy Research Institute, Tehran University of Medical Sciences, Tehran, Iran and Chief Executive of Iranian Primary Immunodeficiency Registry (IPIDR), Executive Manager and member of national scientific committee of First International Congress on Immunodeficiency Disorders, as well as Executive Manager of Iranian Journal of Allergy, Asthma and Immunology. He is also Executive Director of UNESCO Chair in Health Education. He was Chief Editor of more than 10 books; i.e. Immune System and Microorganisms; Diagnosis and Treatment in Patients with Primary Immunodeficiency; Primary Immunodeficiency Disorders in Iran; Atopic Dermatitis; Food Allergy; Guideline of Allergies; Guideline of Asthma and published more than 50 articles in international journals.