Ramsay Fuleihan

Chief, Division of Allergy & Immunology

Sidra Medical Research Center- Doha, Qatar



Dr. Ramsay Fuleihan is the chief of the division of allergy and immunology at Sidra Medical and Research Center. He moved to Sidra from Ann & Robert H Lurie Children’s Hospital of Chicago where he was Professor of Pediatrics at Northwestern University Feinberg School of Medicine and Director of Primary Immunodeficiency Clinical Services and the Jeffrey Modell Diagnostic and Research Center for Primary Immunodeficiencies. Dr. Fuleihan earned his medical degree from the American University of Beirut in Lebanon, completed his pediatric residency at Duke University Medical Center and fellowship in allergy and immunology at the Children’s Hospital-Boston at Harvard Medical School. His main research interest has been the pathogenesis and treatment of primary immunodeficiency diseases. He discovered that defects in the CD40 ligand gene cause the X-linked Hyper IgM Syndrome as a junior faculty at Boston Children’s Hospital. He then moved to Yale University where he worked on developing models to study gene therapy of X-linked hyper IgM, continued his studies on the regulation of CD40 ligand gene expression and discovered a role for the homeobox gene Hhex in the development and function of B lymphocytes. At Lurie Children’s, Northwestern University, he identified the association of development of natural tolerance to egg in previously allergic children with an increase in antigen-specific IL-10 secretion from regulatory T cells (Tr1 cells). Dr. Fuleihan has participated in US Nationwide consortiums including serving on the steering committee of the United States Immunodeficiency Network (USIDNET) and as the principal investigator of its independent institutional review board as well as an investigator and site princicpal investigator of the Primary Immunodeficiency Treatment Consortium (PIDTC). He worked with the Illinois State Department of Health to implement newborn screening for Severe Combined Immunodeficiency and Other T cell Lymphopenia and served as a member of the Illinois Genetic and Metabloic Diseases Advisory Committee. Dr. Fuleihan is a member of the Board of Directors of the American Board of Allergy and Immunology. He is an active fellow of the American Academy of Allergy Asthma and Immunology, where he served as Chair of the Primary Immunodeficiency Committee, member of the Clinical Immunology Society, where he served as chair of the CME committee, a member of the European Society for Immunodeficiencies and as a senior member of the Society for Pediatric Research. He serves on the Medical Advisory Committee of the Immune Deficiency Foundation and as a consultant on their Consulting Immunologist Program, and on the Board of Directors of Bounce Children’s Foundation.