Humanized antibody (h14.18) of antibody 14.18 of mouse that links to gd2 and its fusion with il-2.

A humanized antibody and IL-2 fusion protein, designated as hu14.18-IL2, that specifically binds to GD2 and that stimulates an immunofunction, comprising the light chain of SEQ ID No. 5 and the heavy chain of SEQ ID No. 6.