IFNGR1 and tuberculosis: Recently, 22 gene polymorphisms were studied in IFNGR1 and IFNGR2 gene among Korean TB patients, in which four IFNGR1 variants (rs9376269C/G, rs9376268A/G, rs9376267C/T, rs56251346C/T) were marginally associated with the risk of TB but not statistically significant (160).