T-helper 2 cell activation
http://purl.obolibrary.org/obo/GO_0035712
The change in morphology and behavior of a T helper 2 cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific. [ http://purl.obolibrary.org/obo/CL_0000546 GOC:BHF ]
Synonyms: Th2 cell activation