Different types of microbes elicit distinct protective T cell responses 日cD4+Th1 responses microbes residing within the phagosomes of phagocytes 日cD8+ CTL responses microbes residing in the cytoplasm of various cell types 日cD4+Th2 responses helminthic parasites Defects in CMI result in increased susceptibility to infection by viruses and intracellular bacteria❑ CD4+ Th1 responses microbes residing within the phagosomes of phagocytes ❑ CD8+ CTL responses microbes residing in the cytoplasm of various cell types ❑ CD4+ Th2 responses helminthic parasites Different types of microbes elicit distinct protective T cell responses Defects in CMI result in increased susceptibility to infection by viruses and intracellular bacteria