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. 2006 Apr;117(4):883-96.
doi: 10.1016/j.jaci.2005.12.1347.

Primary immunodeficiency diseases: an update from the International Union of Immunological Societies Primary Immunodeficiency Diseases Classification Committee Meeting in Budapest, 2005

Luigi Notarangelo  1 , Jean-Laurent Casanova, Mary Ellen Conley, Helen Chapel, Alain Fischer, Jennifer Puck, Chaim Roifman, Reinhard Seger, Raif S Geha; International Union of Immunological Societies Primary Immunodeficiency Diseases Classification Committee
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Primary immunodeficiency diseases: an update from the International Union of Immunological Societies Primary Immunodeficiency Diseases Classification Committee Meeting in Budapest, 2005

Luigi Notarangelo et al. J Allergy Clin Immunol. 2006 Apr.

Abstract

Although relatively rare, primary immunodeficiency diseases (PIDs) provide an excellent window into the functioning of the immune system. In the late 1960s, observations on these diseases, with their associated infections and genetics, bisected the immune system into humoral immunity and cell-mediated immunity. These diseases also represent a challenge in their diagnosis and treatment. Beginning in 1970, a unified nomenclature for the then-known PIDs was created by a committee convoked by the World Health Organization. Since then, and later under the aegis of the International Union of Immunological Societies, an international committee of experts has met every 2 to 3 years to update the classification of PIDs. During the past 15 years, the molecular basis of more than 120 PIDs has been elucidated. This update results from the latest meeting of this committee in Budapest, Hungary, in June 2005, which followed 2 1/2 days of scientific discussions. As a result of this work, new entities have been included, and the nomenclature of some PIDs (specifically of the various forms of class-switch recombination defects, previously known as hyper-IgM syndromes) has been changed.

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