Prevalence of isolated antibody to hepatitis B core antigen in an area endemic for hepatitis B virus infection: Implications in hepatitis B vaccination programs
Anna S. F. Lok, Ching‐Lung Lai, Pui‐Chee Wu – 1 July 1988 – Of 1,801 Chinese subjects, age 1 to 90 years, screened for hepatitis B surface antigen and antibody (HBsAg, anti‐HBs) and antibody to hepatitis B core antigen (anti‐HBc), 214 (11.9%) had an isolated, positive anti‐HBc result; anti‐HBc was reproducibly present in the initial sera in only 66% and persisted after an interval of 2 weeks to 3 months in only 73%. There was a strong correlation between the rates of reproducibility and persistence of isolated anti‐HBc and the initial anti‐HBc titers.