Another study analyzed 20 genes involved in IFN-γ signaling such as IFNG, IFNGR1, IFNGR2, IRF1, IL12A, IL12B, IL12RB1, IL12RB2, IL23A, IL23R, IL27, EBI3, IL27RA, IL6ST, SOCS1, STAT1, STAT4, JAK2, TYK2, and TBX21 in a Ghanaian population but no significant result was observed in TB (20). The gene discussed is IL12B; the disease is tuberculosis.