| ESID | European Society for Immunodeficiencies |
| IEIs | Inborn errors of immunity |
| IgMD | IgM deficiency |
| IUIS | International Union of Immunological Societies |
| sIgMD | Selective IgM Deficiency |
| ESID | European Society for Immunodeficiencies |
| IEIs | Inborn errors of immunity |
| IgMD | IgM deficiency |
| IUIS | International Union of Immunological Societies |
| sIgMD | Selective IgM Deficiency |