GAPDH and listeriosis: To examine whether DCs loaded with LLO or GAPDH epitopes might also confer protection against listeriosis, we prepared DC vaccines loaded with peptides, DC-LLO91−99, DC-LLO189−201 or DC-GAPDH1−22, and compared them for protection with DCs loaded with an L. monocytogenes lysate (DC-LM lysate).