Should people who are HBsAg positive be tested for hepatitis D (HDV)?
Why hepatitis D depends on hepatitis B, which HBsAg-positive people should ask about HDV testing, and what to do after a positive or high-risk result.
WHO Hepatitis D Fact Sheet
WHO 关于丁型肝炎的事实说明，涵盖 HDV 与 HBV 的关系、全球负担、重症风险、传播、诊断、预防和治疗概况。
Open original source- Organization
- World Health Organization
- Country or region
- Global
- Language
- en
- Source type
- fact_sheet
- Published
- Source updated
- Last checked
- 2026-06-26
- Credibility note
- 权威公共卫生来源