CDC Hepatitis B Prevention and Control
CDC 关于乙肝传播方式、家庭和伴侣风险、疫苗、检测和预防措施的公众说明。
HBV Serology Tool
Select marker results to see educational possibilities and next-step questions to discuss with a clinician.
Marker guide
HBsAg
Hepatitis B surface antigen. A positive result may suggest current HBV infection.
Anti-HBs
Hepatitis B surface antibody. Positivity may be seen after vaccination or recovery from past infection.
Anti-HBc
Hepatitis B core antibody. Positivity suggests past or current exposure to HBV; vaccination alone usually does not make it positive.
HBeAg
Hepatitis B e antigen. Often used with HBV DNA to assess viral replication.
Anti-HBe
Hepatitis B e antibody. Interpret together with HBeAg, HBV DNA, and liver tests.
Quantitative values are recorded only to preserve report context. Except for the commonly used post-vaccination Anti-HBs reference threshold of 10 mIU/mL, this tool does not replace the laboratory reference range, assay notes, or clinician judgment.
Evidence sources
CDC Hepatitis B Testing and Diagnosis
CDC 关于乙肝筛查、诊断和血清学标志物解释的专业指导。
CDC Hepatitis B Vaccine Administration
CDC 关于乙肝疫苗接种对象、筛查检测与疫苗接种衔接、成年人和风险人群接种建议的临床给药说明。
WHO Hepatitis B Fact Sheet
WHO 关于乙肝传播、预防、疫苗、检测、治疗和全球公共卫生影响的概览。