IMMT and Salmonella Infections: Different KOs were involved in “Salmonella infection pathway,” including nitric oxide reductase FlRd-NAD reductase (K12265; norW; P < 0.001), secreted effector protein PipB2 (K15352; pipB2; P < 0.001), Salmonella plasmid virulence protein B (K15366; spvB; P < 0.001), and nitric oxide dioxygenase (K05916; hmp; P < 0.001).