Differentiation between human and chimpanzee in bloodstains by enzyme-linked immunosorbent assay (ELISA) using antihuman serum

Summary An enzyme-linked immunosorbent assay (ELISA) for species identification of human bloodstains using two commercially available antisera against human serum is described. Human bloodstains were to be distinguished from those of chimpanzees and other animals using raw antisera, and the differentiation between human and chimpanzee became more evident when those antisera were absorbed with a small amount of chimpanzee plasma. Human bloodstains could clearly be identified by the present method even after 4 weeks of aging at room temperature.Supported in part by the Cooperation Research Program of the Primate Research Institute