Diethylstilbestrol/KLH is an antigen-adjuvant conjugate that links Diethylstilbestrol with keyhole limpet hemocyanin (KLH). This conjugation enhances the production of antigen-specific antibodies in vaccine models by coupling the antigen with a protein adjuvant. It does not affect protein folding or disrupt major epitopes, and it enhances cross-presentation and the production of antigen-specific T cells.