Evidence map›Paper›PMID 42736448›Full record

ReviewNature reviews. Gastroenterology & hepatology2026

Occult hepatitis B virus infection.

Lung-Yi Mak, Rex Wan-Hin Hui, Teresa Pollicino, Markus Cornberg, Robert Gish, Ira Jacobson, Patrick T Kennedy, Wai-Kay Seto, Giovanni Raimondo, Man-Fung Yuen

Abstract readReview
PubMed Publisher
In one paragraph

Review in Nature reviews. Gastroenterology & hepatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Lung-Yi MakDepartment of Medicine, School of Clinical Medicine, The Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0002-2266-3935
Rex Wan-Hin HuiDepartment of Medicine, School of Clinical Medicine, The Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0001-7447-7539
Teresa PollicinoDepartment of Clinical and Experimental Medicine, University Hospital of Messina, Messina, Italy.ORCID http://orcid.org/0000-0001-6602-3035
Markus CornbergDepartment of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology at Hannover Medical School, Hannover, Germany.ORCID http://orcid.org/0000-0002-9141-8001
Robert GishHepatitis B Foundation, Doylestown, PA, USA.ORCID http://orcid.org/0000-0001-6306-3189
Ira JacobsonNYU Langone Health, New York, NY, USA.
Patrick T KennedyLiver Centre, Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, UK.
Wai-Kay SetoDepartment of Medicine, School of Clinical Medicine, The Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.ORCID http://orcid.org/0000-0002-9012-313X
Giovanni RaimondoDepartment of Clinical and Experimental Medicine, University of Messina, Messina, Italy.
Man-Fung YuenDepartment of Medicine, School of Clinical Medicine, The Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China. mfyuen@hku.hk.ORCID http://orcid.org/0000-0001-7985-7725

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Occult hepatitis B virus (HBV) infection (OBI) is defined as the presence of replication-competent HBV DNA in the liver or blood of individuals who are seronegative for hepatitis B surface antigen. The prevalence of OBI varies hugely according to the local endemicity of chronic HBV infection and risk of HBV exposure, ranging from 0.8% in the general population to >10% in those with hepatitis C virus or HIV infection, and to >40% in individuals with isolated positive antibody to hepatitis B core antigen (anti-HBc). Diagnosing OBI remains challenging due to extremely low and fluctuating levels of HBV DNA in individuals over time. Positive serological markers, such as anti-HBc, only arouse clinician suspicion, with no diagnostic confidence, but can be used to identify people with previous exposure to HBV and for subclassification of OBI, which should be combined with serum HBV DNA testing. The consequences of OBI include transmission of HBV during the transfusion of blood products or solid organ transplantation, reactivation of HBV in patients undergoing immunosuppressive therapy, acceleration of disease progression in those with pre-existing chronic liver diseases, and an increased risk of hepatocellular carcinoma development. In this Review, we describe the core knowledge of OBI - epidemiology, diagnosis, mechanisms and virology, and clinical management - that clinicians should be aware of, and elaborate on challenges and future directions associated with OBI.

Identifiers

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.