Epidemiological serosurvey of hepatitis B virus among children aged 1-14 years in Guangdong Province, China

The prevalence of HBsAg among children aged 1-14 years in Guangdong in 2013 was 1.2%, showing a dramatic decrease compared to the 1992 provincial-level cross-sectional survey (19.9%). Children aged 1-4 years and children from the Pearl River Delta had the lowest prevalence of HBsAg positivity. High vaccination coverage among children and timely vaccination of newborns has played an important role in reducing the prevalence of HBsAg.