Therefore, we hypothesised that there was a functional polymorphism of the FCGR2A, FCGR2B, FCGR2C, FCGR3A and/or FCGR3B genes, encoding Fcγ receptors responsible the for clearance of immune complexes and opsonised pathogens in SA and/or TB patients [14]. Here, FCGR2B is linked to tuberculosis.