NFKB1 and leishmaniasis: In addition, pathway enrichment analysis demonstrated that the nuclear factor kappa B (NF-κB) signalling pathway [Figure 4; p = 3.14E−06; involving NFKB1 and B-cell CLL/lymphoma 2 (BCL2)] and leishmaniasis (p = 4.72E−07) were particularly associated with the nodes in modules 1 and 2, respectively (Table 3 and Figure 5).