Evidence map›Paper›PMID 31618959›Full record

SynthesisViruses2019

How Central Is the Domestic Pig in the Epidemiological Cycle of Japanese Encephalitis Virus? A Review of Scientific Evidence and Implications for Disease Control.

Héléna Ladreyt, Benoit Durand, Philippe Dussart, Véronique Chevalier

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Viruses, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 2 pooled it
6.4field-weighted citation impact, top 3% 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

44 citing papers in PubMed, 2 syntheses or guidelines pooled it, 70 citations in OpenAlex.

  1. Australian vertebrate hosts of Japanese encephalitis virus: a review of the evidence.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2025
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  9. Thioester-Containing Protein TEP27 inInternational journal of molecular sciences · 2025
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  12. International journal of molecular sciences · 2025
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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

4 authors at 3 institutions in 2 countries.

Héléna LadreytEpidemiology Unit, Laboratory for Animal Health, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), University Paris-Est, 94700 Maisons-Alfort, France. helena.ladreyt@anses.fr.
Benoit DurandEpidemiology Unit, Laboratory for Animal Health, French Agency for Food, Environmental and Occupational Health and Safety (ANSES), University Paris-Est, 94700 Maisons-Alfort, France. benoit.durand@anses.fr.
Philippe DussartVirology Unit, Institut Pasteur du Cambodge, Institut Pasteur International Network, PO Box 983, Phnom Penh 12201, Cambodia. pdussart@pasteur-kh.org.
Véronique ChevalierAgricultural Research for Development (CIRAD), UMR ASTRE, F-34090 Montpellier, France. veronique.chevalier@cirad.fr.
Centre de Coopération Internationale en Recherche Agronomique pour le Développement · FRDépartement Santé Animale · FRInstitut Pasteur du Cambodge · KH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the existence of human vaccines, Japanese encephalitis (JE) remains the leading cause of human encephalitis in Asia. Pigs are described as the main amplifying host, but their role in JE epidemiology needs to be reassessed in order to identify and implement efficient control strategies, for both human and animal health. We aimed to provide a systematic review of publications linked to JE in swine, in terms of both individual and population characteristics of JE virus (JEV) infection and circulation, as well as observed epidemiological patterns. We used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement to select and analyze relevant articles from the Scopus database, 127 of which were included in the review. Pigs are central, but the implication of secondary hosts cannot be ruled out and should be further investigated. Although human vaccination cannot eradicate the virus, it is clearly the most important means of preventing human disease. However, a better understanding of the actual involvement of domestic pigs as well as other potential JEV hosts in different JEV epidemiological cycles and patterns could help to identify additional/complementary control measures, either by targeting pigs or not, and in some specific epidemiological contexts, contribute to reduce virus circulation and protect humans from JEV infection.

Indexed as

AnimalsCommunicable Disease ControlCulexDisease ReservoirsEncephalitis, JapaneseEncephalitis Virus, JapaneseHumansJapanese Encephalitis VaccinesSwineSwine DiseasesVaccinationJapanese Encephalitis VaccinescontrolepidemiologyJapanese encephalitis viruspig

Identifiers

PMID31618959
PMCPMC6832429
OpenAlexW2980813598

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.