title: Past infection with hepatitis B virus in patients at a dental school.
abstract: Samples of blood from 327 new patients at a dental school were tested by radioimmunoassay for the presence of hepatitis B surface antigen (HBsAg) and hepatitis B surface antibody (anti-HBs). The data were compared to the patients' histories of hepatitis. Through a statistical analysis, it was indicated that significant numbers of patients with no history of hepatitis had been infected with hepatitis B virus.
mesh_terms: D000293:Adolescent; D000328:Adult; D002353:Carrier State / Q000097:blood; D002648:Child; D005260:Female; D006509:Hepatitis B / Q000097:blood / Q000175:diagnosis* / Q000453:epidemiology; D006510:Hepatitis B Antibodies / Q000302:isolation & purification; D006514:Hepatitis B Surface Antigens / Q000302:isolation & purification; D006801:Humans; D008297:Male; D008487:Medical History Taking; D008875:Middle Aged; D011863:Radioimmunoassay
chemical_list: D006510:Hepatitis B Antibodies; D006514:Hepatitis B Surface Antigens