Risk factors associated with immunoprophylaxis failure against mother to child transmission of hepatitis B virus and hepatitis B vaccination status in Yunnan province, China

PMTCT of HBV was well implemented in Yunnan. However, in order to achieve optimal prevention of vertical HBV transmission, it is mandatory to make additional efforts to improve the implementation of regulatory HBV immunoprophylaxis, especially for HBsAg-positive pregnant women.