RT Journal Article SR Electronic T1 Hepatitis-B surface antigen and antibody in Black and White patients with venereal diseases. JF The British Journal of Venereal Diseases JO Br J Vener Dis FD BMJ Publishing Group Ltd SP 372 OP 374 DO 10.1136/sti.53.6.372 VO 53 IS 6 A1 J Schneider A1 J King A1 G M Macnab A1 M C Kew YR 1977 UL http://sti.bmj.com/content/53/6/372.abstract AB The prevalence of both the hepatitis-B surface antigen (HBsAg) and its specific antibody (anti-HBs) was significantly greater in the sera of White patients suffering from sexually transmitted diseases than that in White blood donors. However, Black patients with venereal diseases did not show an increased prevalence of either HBsAg or anti-HBs. These findings support the view that heterosexual transmission of the hepatitis-B virus is less likely to occur in populations in whom this infection is largely acquired before the age of sexual maturity.