Amoebic liver abscess: serum immunoglobulins and complement in Northern Nigerian patients.

Immunoglobulins (IgG, IgA, IgM and IgD) and complement components of both the classical and alternative pathways (C1q, C3 and C4, and factor B) were measured in the sera of 15 Nigerian patients with proven amoebic liver abscess and compared with 30 age-matched controls. IgA, C3 and factor B were significantly higher in amoebic liver abscess patients. The differences in IgG, IgM, IgD, C1q and C4 levels between patients and controls were not significant.