The peptides will be synthesized to >97% purity by an external provider, Pepscan Presto, The Netherlands. Prior to use, it will be dissolved in DMSO, mixed, and sterile filtered through a 0.22 micron filter. Endotoxin and bacterial cultivation tests will be carried out on the preparations. Sterility tests before release of peptides for vaccination treatment is carried out by hematological laboratory (location 54P4).