Evaluation of IFN-γ polymorphism+874 T/A in patients with recurrent tonsillitis by PCR real time mismatch amplification mutation assay (MAMA real time PCR).

•The MAMA PCR Real Time system, has several advantages over other SNP identification techniques.•Tonsillectomy patients had a statistical trend to possess the low IFN-γ polymorphism.•Recurrent tonsillitis is one of the most common otorhinolaryngologic disorders.•The recurrent tonsillitis illness is orchestrated by the sequential elaboration of proinflammatory cytokines.