Intravenous immunoglobulin contains a broad repertoire of anticarbohydrate antibodies that is not restricted to the IgG2 subclass.
Gunten, Stephan, David Smith, Richard Cummings, Stefan Riedel, Sylvia Miescher, Alexander Schaub, Robert Hamilton, and Bruce Bochner. 2009. “Intravenous Immunoglobulin Contains a Broad Repertoire of Anticarbohydrate Antibodies That Is Not Restricted to the IgG2 Subclass.”. J Allergy Clin Immunol 123 (6): 1268-76.e15.