Evidence map›Paper›PMID 33723007›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

A hepatitis B virus causes chronic infections in equids worldwide.

Andrea Rasche, Felix Lehmann, Nora Goldmann, Michael Nagel, Andres Moreira-Soto, Daniel Nobach, Ianei de Oliveira Carneiro, Nikolaus Osterrieder, Alex D Greenwood, Eike Steinmann and 5 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.6field-weighted citation impact, top 10% of its field
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

14 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Hepatitis B and D virus entry.Nature reviews. Microbiology · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. A novel hepadnavirus in domestic dogs.Scientific reports · 2022
    Article
  13. Review
  14. Article
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

15 authors at 7 institutions in 5 countries.

Andrea RascheInstitute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany.ORCID 0000-0001-6693-1180
Felix LehmannInstitute of Medical Virology, National Reference Center for Hepatitis B Viruses and Hepatitis D Viruses, Justus Liebig University, 35392 Giessen, Germany.
Nora GoldmannGerman Centre for Infection Research (DZIF), associated partner site Charité, 10117 Berlin, Germany.
Michael NagelKumasi Centre for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana.
Andres Moreira-SotoInstitute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany.ORCID 0000-0002-9224-5157
Daniel NobachInstitute of Veterinary Pathology, Justus Liebig University, 35390 Giessen, Germany.ORCID 0000-0001-6279-7412
Ianei de Oliveira CarneiroInstitute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany.
Nikolaus OsterriederInstitute of Virology, Freie Universität Berlin, 14163 Berlin, Germany.ORCID 0000-0002-5313-2176
Alex D GreenwoodDepartment of Wildlife Diseases, Leibniz Institute for Zoo and Wildlife Research, 10315 Berlin, Germany.
Eike SteinmannFaculty of Medicine, Department for Molecular and Medical Virology, Ruhr University Bochum, D-44801 Bochum, Germany.
Alexander N LukashevMartsinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, Sechenov University, 119991 Moscow, Russia.
Gerhard SchulerClinic for Obstetrics, Gynecology and Andrology of Large and Small Animals, Justus Liebig University Giessen, 35392 Giessen, Germany.ORCID 0000-0002-9412-3743
Dieter GlebeInstitute of Medical Virology, National Reference Center for Hepatitis B Viruses and Hepatitis D Viruses, Justus Liebig University, 35392 Giessen, Germany.ORCID 0000-0001-5039-0252
Jan Felix DrexlerInstitute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; felix.drexler@charite.de.ORCID 0000-0002-3509-0232
Equid HBV Consortium
Justus-Liebig-Universität Gießen · DEHumboldt-Universität zu Berlin · DERuhr University Bochum · DECity University of Hong Kong · HKKumasi Centre for Collaborative Research in Tropical Medicine · GHLeibniz Institute for Zoo and Wildlife Research · DESechenov University · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preclinical testing of novel therapeutics for chronic hepatitis B (CHB) requires suitable animal models. Equids host homologs of hepatitis C virus (HCV). Because coinfections of hepatitis B virus (HBV) and HCV occur in humans, we screened 2,917 specimens from equids from five continents for HBV. We discovered a distinct HBV species (Equid HBV, EqHBV) in 3.2% of donkeys and zebras by PCR and antibodies against EqHBV in 5.4% of donkeys and zebras. Molecular, histopathological, and biochemical analyses revealed that infection patterns of EqHBV resembled those of HBV in humans, including hepatotropism, moderate liver damage, evolutionary stasis, and potential horizontal virus transmission. Naturally infected donkeys showed chronic infections resembling CHB with high viral loads of up to 2.6 × 10

Indexed as

AnimalsAntibodies, ViralAntiviral AgentsCell Line, TumorCells, CulturedCoinfectionDisease Models, AnimalDNA, ViralDrug Evaluation, PreclinicalEquidaeFemaleHepacivirusHepatitis B, ChronicHepatitis B virusHepatitis CHepatocytesAntibodies, ViralAntiviral AgentsDNA, Viralanimal modelcoinfectionequidsevolutionHBV

Identifiers

PMID33723007
PMCPMC8020657
OpenAlexW3136670855

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.