Fig. 1From: Restricted TcR β chain CDR3 clonotype is associated with resolved acute hepatitis B subjectsHBV infection and related immune response. HBV enters hepatocytes or phagocytes, and CD8+/ CD4+ T cells recognize HBV antigens presented by MHC I or MHC II, then CD8+ T cells are activated and cytotoxic effect on target cells, and the CD4+ T cells help B cells activate and produce antibodies against HBVBack to article page