The number of specific IFN-γ secretion T cells was significantly higher in OBI carriers (25 SFC/106 PBMCs), followed by CHB carriers (20 SFC/106 PBMCs), than in HBV resolved infections (10 SFC/106 PBMCs, P ≤ 0.004) or non-infected individuals (5 SFC/106 PBMCs, P < 0.001), but not statistically different between OBI and CHB carriers (P > 0.05; Figure 2B). Here, IFNG is linked to infection.