title: A "virus" associated with serum hepatitis.
mesh_terms: D000818:Animals; D003168:Complement Fixation Tests; D005455:Fluorescent Antibody Technique; D006509:Hepatitis B / Q000382:microbiology*; D006511:Hepatitis B Antigens; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006801:Humans; D005779:Immunodiffusion; D013997:Time Factors
chemical_list: D006511:Hepatitis B Antigens