disease has basis in dysfunction of membrane attack complex complement deficiency immunodeficiency due to a late component of complement deficiency https://www.malacards.org/card/immunodeficiency_due_to_a_late_component_of_complement_deficiency MONDO:0015700 terminal complement pathway deficiency Orphanet:169150 immunodeficiency due to a C5 to C9 component complement deficiency GARD:0017050 UMLS:C0398765 icd11.foundation:531050218 deficiency of complement of terminal pathway immunodeficiency due to C5 to C9 component complement deficiency A genetic deficiency of any membrane attack complex (MAC, also known as terminal component complex (TCC)) component of the complement system (C5, C6, C7, C8, C9). Deficiencies of the terminal complement pathway results in a predisposition to infections, such as invasive meningococcal disease or disseminated gonococcal infection. MEDGEN:585067