Journal Article Research Support, N.I.H., Extramural Immunoglobulin G Pneumococcal Vaccines 187348-17-0 Antibodies Antibodies, Monoclonal, Humanized B-Cell Activating Factor Common variable immune deficiency Follicular helper T cells ICOS ICOS protein, human Immunoglobulin A Immunoglobulins Increased Plasmablasts Inducible T cell co-stimulator Inducible T-Cell Co-Stimulator Protein Interleukin-12 Production of IL-10 and IL-4 RNA, Messenger Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. TNFRSF13B protein, human TNFSF13B protein, human Transmembrane Activator and CAML Interactor Protein Tumor Necrosis Factor Ligand Superfamily Member 13