Antibody Deficiencies: XLA, IgA, CVID & Hyper-IgM | USMLE Step 1

Compare primary antibody deficiencies through the affected step in B-cell development or antibody production. Review infection patterns, immunoglobulin findings, XLA, selective IgA deficiency, CVID, and CD40L-associated hyper-IgM. Explore USMLE FOX: https://usmlefox.com CHAPTERS 00:00 Primary antibody deficiencies 01:36 X-linked agammaglobulinemia 04:05 Selective IgA deficiency 06:49 CVID clinical consequences 09:32 Transient hypogammaglobulinemia of infancy 12:36 Connecting the mechanism to infection USMLE FOX | Step 1 medical education Thumbnail illustration is schematic. For education and exam preparation; not personal medical advice. USMLE FOX is independent and is not affiliated with USMLE or NBME. #USMLE #Step1 #MedicalEducation Figure credit: OpenStax Microbiology (2016), opsonization illustration, CC BY 4.0. https://commons.wikimedia.org/wiki/Fi... | https://creativecommons.org/licenses/...