慢性乙型肝炎(乙肝)病毒(Hepatitis B Virus,HBV)感染,在世界卫生组织(World Health Organization,WHO)西太平洋区(Regional for the Western Pacific,WPR)每年造成约32.5万人因肝硬化和肝细胞癌死亡。老挝的HBV感染率>8%,为HBV高流行国家,主要在出生时和婴幼儿期通过母婴传播。出生后及时接种首剂乙肝疫苗(Hepatitis B Vaccine Birth Dose,HepB-BD)可预防HBV传播。为评 Chronic hepatitis B virus (HBV) infection causes an estimated 325,000 people with cirrhosis and cirrhosis each year in the World Health Organization (WHO) Regional for the Western Pacific (WPR) Hepatocellular carcinoma death. The prevalence of HBV infection in Laos is> 8%, which is a high-prevalence HBV in the country. It is transmitted mainly through mother-to-infant birth and infancy. Hepatitis B Vaccine Birth Dose (HepB-BD) can prevent the spread of HBV after birth. For comment