Genotypic and allelic distributions and frequencies of IL12A-504 G/T, IL18-607 C/A, and IFNGR1-611 A/G SNPs, values of Odds Ratio (OR) and 95% Confidence Interval (95% CI) among the groups of Controls (n = 110) and Patients (n = 149), and among the groups of patients with Acute (n = 39) and Chronic (Multifocal + Unifocal) forms of PCM (n = 110). The gene discussed is IL18; the disease is paracoccidioidomycosis.