Streptomycin/KLH is an antigen-adjuvant conjugate of Streptomycin and keyhole limpet hemocyanin (KLH). This conjugation enhances the production of antigen-specific antibodies in vaccine models by linking the antigen with a protein adjuvant. The conjugate does not affect protein folding or disrupt major epitopes, while also enhancing cross-presentation and the generation of antigen-specific T cells.