title: Delta infection without increase in severity of hepatitis.
mesh_terms: D001706:Biopsy; D006509:Hepatitis B / Q000276:immunology* / Q000473:pathology; D006511:Hepatitis B Antigens / Q000032:analysis*; D035923:Hepatitis delta Antigens; D006801:Humans; D008099:Liver / Q000473:pathology
chemical_list: D006511:Hepatitis B Antigens; D035923:Hepatitis delta Antigens