Immunisation with KLH-linked hamster PrP peptides resulted in a prolongation of about 13.0–18.7% in scrapie infected hamsters [52] and the immunisation of hamsters with dendritic cells loaded with PrP peptides (encompassing amino acids 98–127) delayed the onset of clinical scrapie by 18.7% [53]. The gene discussed is PRNP; the disease is scrapie.