Secondary hypogammaglobulinemia is frequent in giant cell arteriitis and ANCA-associated vasculitides but rare in Spondyloarthritis – are age and treatment the most important risk factors?

Introduction: Immunosuppressive treatment may lead to the development of secondary hypogammaglobulinemia, which may facilitate the occurrence of recurrent and potentially severe infections. Secondary hypogammaglobulinemia is especially common with B-cell-targeted therapy [ref:1], but which [for full text, please go to the a.m. URL]