title: Antigen in infectious hepatitis.
mesh_terms: D000818:Animals; D000956:Antigens, Viral / Q000302:isolation & purification*; D002499:Centrifugation, Density Gradient; D005243:Feces / Q000276:immunology; D006168:Guinea Pigs / Q000276:immunology; D006506:Hepatitis A / Q000276:immunology*; D006509:Hepatitis B / Q000276:immunology; D006511:Hepatitis B Antigens / Q000302:isolation & purification; D006801:Humans; D007106:Immune Sera; D005779:Immunodiffusion; D008854:Microscopy, Electron
chemical_list: D000956:Antigens, Viral; D006511:Hepatitis B Antigens; D007106:Immune Sera