Viral hepatitis and the Australia antigen.
D000917:Antibody Formation; D001782:Blood Donors; D001803:Blood Transfusion; D002353:Carrier State / Q000175:diagnosis; D006506:Hepatitis A / Q000276:immunology; D006509:Hepatitis B / Q000276:immunology / Q000517:prevention & control*; D006515:Hepatitis B virus / Q000302:isolation & purification*; D006801:Humans; D008103:Liver Cirrhosis / Q000276:immunology