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Epidemiology of hepatitis δ virus infection in China

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TLDR
The prevalence of hepatitis δ virus (HDV) was evaluated in 1027 HBsAg positive people living in five provinces, two municipalities and four autonomous regions of China and 17 people had antibodies to HDV, including those who were anti‐HD.
Abstract
The prevalence of hepatitis δ virus (HDV) was evaluated in 1027 HBsAg positive people living in five provinces, two municipalities and four autonomous regions of China. Seventeen people had antibodies to HDV (anti-HD — 13 of 454 asymptomatic carriers of HBsAg, two of 151 patients with chronic persistent hepatitis and two of 59 patients with chronic active hepatitis). All of those who were anti-HD lived in the autonomous regions of Inner Mongolia, Tibet, and Xinjiang.

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Citations
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HDV Seroprevalence in HBsAg-Positive Patients in China Occurs in Hotspots and Is Not Associated with HCV Mono-Infection.

TL;DR: Wang et al. as discussed by the authors used a rapid point-of-care test and an ELISA to retrospectively test for antibodies against the Hepatitis Delta antigen (anti-HDV-Ab) in 4103 HBsAg-positive and 1661 anti-HCV-positive sera from China and Germany.
Journal ArticleDOI

The absence of hepatitis B virus DNA in hepatitis B e antigen positive sera from chronic hepatitis B surface antigen carriers in China.

TL;DR: There was considerable discordance with HBV DNA not being detectable in 10 out of 13 patients who were hepatitis B e antigen positive, and neither hepatitis D (delta) infection nor the acquired immunodeficiency syndrome (AIDS) could be implicated.
References
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Journal ArticleDOI

Structure, sequence and expression of the hepatitis delta ( δ ) viral genome

TL;DR: Biochemical and electron microscopic data indicate that the human hepatitis δ viral agent contains a covalently closed circular and single-stranded RNA genome that has certain similarities with viroid-like agents from plants.
Journal ArticleDOI

The hepatitis delta (delta) virus possesses a circular rna

TL;DR: Evidence based on electron microscopy and electrophoretic behaviour that HDV contains a single stranded circular RNA molecule is presented, which is the first animal virus identified with a circular RNA genome.
Journal ArticleDOI

Transmission of the hepatitis b virus-associated delta antigen to chimpanzees

TL;DR: Delta appears to be a marker of a transmissible pathogenic agent, either an HBV variant or another agent that requires the helper functions of HBV, that is defective and interferes with HBV replication.
Journal Article

Detection of Additional Antigenic Determinants of Hepatitis B Antigen

TL;DR: Preliminary data suggest w is more common that r on HB Ag in the United States, but r is most common in Thailand, and further study after absorbing the antisersa with heterologous antigens indicated that the reference antisera were distinguishing two additional antigenic determinants, designated w and r.
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