InhaltsangabeGenetic modification of xenografts.-Public health risks - patient versus society in an emerging field.-Cross-species infections.-Non-human primate herpesviruses: importance for xenotransplantation.-Understanding xenotransplantation risks from non-swine hepatitis E virus: cross-species infection and risk in xenotransplantation.-Molecular cloning and functions characterization of infectious PERV and development of diagnostic tests.-Xenotransplantation - Federal regulatory considerations.-Subject index