Types of cell-mediated immune reactions 口CD4+ Th responses 口CD8+ CTL responses Delayed-type Hypersensitivity (DTH) T cell-dependent immune reactions that cause normal tissues injury NK cell mediated innate immunity, kill infected cell earlyTypes of cell-mediated immune reactions ❑ CD4+ Th responses ❑ CD8+ CTL responses Delayed-type Hypersensitivity (DTH) T cell-dependent immune reactions that cause normal tissues injury NK cell mediated innate immunity, kill infected cell early