Abstract
In a case of laevocardia, bronchiectasis, and paranasal sinus abnormalities, assessment on 2 occasions showed the presence of moderate immunodeficiency. Serum concentrations of IgG and IgM were low, and serum and salivary IgA was not detected. T-lymphocytes were reduced in number and cell-mediated immunity in vivo and in vitro was impaired. Opsonisation, complement system, and neutrophil functions were normal.
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