Evidence map›Paper›PMID 31660396›Full record

ArticleOpen forum infectious diseases2019

High Hepatitis E virus (HEV) Positivity Among Domestic Pigs and Risk of HEV Infection of Individuals Occupationally Exposed to Pigs and Pork Meat in Hanoi, Vietnam.

Nghiem Xuan Hoan, Pham Xuan Huy, Bui Tien Sy, Christian G Meyer, Trinh Van Son, Mai Thanh Binh, Dao Phuong Giang, Dam Tu Anh, C-Thomas Bock, Bo Wang and 5 more

Open access · goldAbstract read
In one paragraph

Article in Open forum infectious diseases, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 4 pooled it
2.3field-weighted citation impact, top 11% 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

26 citing papers in PubMed, 4 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Pooled it
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  7. First Detection ofPathogens (Basel, Switzerland) · 2026
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  15. An Update in Knowledge of Pigs as the Source of Zoonotic Pathogens.Animals : an open access journal from MDPI · 2023
    Review
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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 5 institutions in 2 countries.

Nghiem Xuan HoanInstitute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
Pham Xuan HuyDepartment of Pathophysiology, Vietnam Military Medical University, Hanoi, Vietnam.
Bui Tien SyInstitute of Clinical Infectious Diseases, Hanoi, Vietnam.
Christian G MeyerInstitute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
Trinh Van SonInstitute of Clinical Infectious Diseases, Hanoi, Vietnam.
Mai Thanh BinhInstitute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
Dao Phuong GiangInstitute of Clinical Infectious Diseases, Hanoi, Vietnam.
Dam Tu AnhDepartment of Immunology and Pathophysiology, Hanoi Medical University, Vietnam.
C-Thomas BockInstitute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
Bo WangDepartment of Infectious Diseases, Robert Koch Institute, Berlin, Germany.
Hoang Van TongVietnamese-German Center for Medical Research, Hanoi, Vietnam.
Peter G KremsnerInstitute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
Le Huu SongInstitute of Clinical Infectious Diseases, Hanoi, Vietnam.
Nguyen Linh ToanVietnamese-German Center for Medical Research, Hanoi, Vietnam.
Thirumalaisamy P VelavanInstitute of Tropical Medicine, University of Tübingen, Tübingen, Germany.
Vietnamese - German Center of Excellence in Medical Research · VNHanoi Medical University · VNRobert Koch Institute · DEUniversity of Tübingen · DEVietnam Military Medical University · VN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatitis E virus (HEV) infection can occur through consumption of undercooked pork meat or exposure to animal feces. Because there are scarce data only in developing countries, we assessed whether pigs might be a potential source of human HEV infections in Vietnam. In addition, we determined anti-HEV seroprevalences in the general population and in individuals professionally exposed to pigs and pork meat.

methodsThe study took place in Hanoi, Vietnam. Liver tissues from domestic pigs (n = 210) and serum samples obtained from individuals occupationally exposed to pigs and pork meat (n = 283) and from unexposed healthy controls (n = 168) were screened for HEV-ribonucleic acid (RNA) by reverse-transcription polymerase chain reaction. The exposed group was divided into pork meat vendors (n = 81), pig farmers (n = 96), and slaughterers (n = 106). Serum samples were subjected to HEV immunoglobulin (Ig)G and IgM enzyme-linked immunosorbent assays. The HEV genotypes were assessed by direct sequencing, followed by phylogenetic analyses.

resultsHepatitis E virus seroprevalence was higher among persons occupationally exposed to pigs/pork meat compared with unexposed individuals (anti-HEV IgM 11% vs 6%,

conclusionsHepatitis E virus circulates in domestic pigs in Hanoi and constitutes a permanent zoonotic disease risk. The high HEV seroprevalence among occupationally exposed individuals indicates an associated risk of HEV infection.

Indexed as

hepatitis E virusoccupationally exposedpigspork meatzoonoses

Identifiers

PMID31660396
PMCPMC6735913
OpenAlexW2954944740

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.