Keywords: اختلال شنوایی شنوایی; newborn; screening; sensorineural hearing impairment; deafness genes; cytomegalovirus; AABR; Automated auditory brainstem response; cCMV; Congenital cytomegalovirus; CMV; Cytomegalovirus; DBS; Dried blood spot; FRET; Fluorescence resonance energy transfer