Late‐Onset Combined Immune Deficiency: A Subset of Common Variable Immunodeficiency with Severe T Cell Defect

BACKGROUND: Common variable immunodeficiency (CVID) is a primary immune deficiency defined by defective antibody production. In most series, a small proportion of patients present with opportunistic infections (OIs). METHODS: The French DEFI study has enrolled patients with primary hypogammaglobulin... View More