Reactivities against p54-flagellin (MS vs HC: 18.3 vs 39.4%, p = 0.026) and against p41 (MS vs HC: 25 vs 48.5%, p = 0.022), were less frequent in MS than HCs, and reactivity against CagA exhibited a tendency to lower frequency in MS compared to HCs (73.3 vs 90.9%, p = 0.06). The gene discussed is S100A8; the disease is myeloid sarcoma.