APC presents peptide with weak binding to the T-cell receptor
APC presents peptide that binds strongly to the T-cell receptor
Naive CD4 T celi differentiates into Th2 celi
IL-4
IL-5
Naive CD4 T celi differentiates into Th1 celi
Figuro 10-13 Immunobiology, 6/e. (O Garland Science 200S)