Evidence map›Paper›PMID 33668224›Full record

ReviewViruses2021

Potential Role of Birds in Japanese Encephalitis Virus Zoonotic Transmission and Genotype Shift.

Muddassar Hameed, Abdul Wahaab, Mohsin Nawaz, Sawar Khan, Jawad Nazir, Ke Liu, Jianchao Wei, Zhiyong Ma

Open access · goldAbstract readReview
In one paragraph

Review in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
10.2field-weighted citation impact, top 1% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 65 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
    Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Vector competence of EuropeanCurrent research in parasitology & vector-borne diseases · 2025
    Article
  11. Article
  12. Article
  13. Antiviral Effects of Avian Interferon-Stimulated Genes.Animals : an open access journal from MDPI · 2024
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

8 authors at 1 institution in 1 country.

Muddassar HameedShanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China.ORCID 0000-0003-2677-9932
Abdul WahaabShanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China.ORCID 0000-0002-1919-3653
Mohsin NawazShanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China.
Sawar KhanShanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China.
Jawad NazirVaccinologist/Head Virology, Tréidlia Biovet Pty Ltd. Units, Seven Hills, NSW 2147, Australia.
Ke LiuShanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China.
Jianchao WeiShanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China.ORCID 0000-0002-3246-6273
Zhiyong MaShanghai Veterinary Research Institute, Chinese Academy of Agricultural Science, Shanghai 200241, China.
Shanghai Veterinary Research Institute · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Japanese encephalitis (JE) is a vaccine-preventable disease caused by the Japanese encephalitis virus (JEV), which is primarily prevalent in Asia. JEV is a Flavivirus, classified into a single serotype with five genetically distinct genotypes (I, II, III, IV, and V). JEV genotype III (GIII) had been the most dominant strain and caused numerous outbreaks in the JEV endemic countries until 1990. However, recent data shows the emergence of JEV genotype I (GI) as a dominant genotype and it is gradually displacing GIII. The exact mechanism of this genotype displacement is still unclear. The virus can replicate in mosquito vectors and vertebrate hosts to maintain its zoonotic life cycle; pigs and aquatic wading birds act as an amplifying/reservoir hosts, and the humans and equines are dead-end hosts. The important role of pigs as an amplifying host for the JEV is well known. However, the influence of other domestic animals, especially birds, that live in high abundance and close proximity to the human is not well studied. Here, we strive to briefly highlight the role of birds in the JEV zoonotic transmission, discovery of birds as a natural reservoirs and amplifying host for JEV, species of birds susceptible to the JEV infection, and the proposed effect of JEV on the poultry industry in the future, a perspective that has been neglected for a long time. We also discuss the recent in vitro and in vivo studies that show that the newly emerged GI viruses replicated more efficiently in bird-derived cells and ducklings/chicks than GIII, and an important role of birds in the JEV genotype shift from GIII to GI.

Indexed as

AnimalsBirdsEncephalitis, JapaneseEncephalitis Virus, JapaneseGenotypeHumansMosquito Vectorsbirdsgenotype shiftJapanese encephalitis virusJEV genotype IJEV genotype III

Identifiers

PMID33668224
PMCPMC7996159
OpenAlexW3126520058

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.