Currently, there are two presentations available: version 2.0 contains antigens of 19.5, 26.5, 30, 35, 89 (VacA), and 116 (CagA) kDa; and version 2.1 contains antigens of 19.5, 30, 35, 37, 89 (VacA), and 116 (CagA) kDa, the latter version also contains an additional recombinant antigen (∼45 kDa) named the current infection marker (CIM). The gene discussed is S100A8; the disease is infection.