Evidence map›Paper›PMID 31249566›Full record

ArticleFrontiers in microbiology2019

Adaptive Evolution of Human-Isolated H5Nx Avian Influenza A Viruses.

Fucheng Guo, Yiliang Li, Shu Yu, Lu Liu, Tingting Luo, Zhiqing Pu, Dan Xiang, Xuejuan Shen, David M Irwin, Ming Liao and 1 more

Abstract read
In one paragraph

Article in Frontiers in microbiology, 2019. 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
–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

14 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. A rapid review of the avian influenza PB2 E627K mutation in human infection studies.Canada communicable disease report = Releve des maladies transmissibles au Canada · 2025
    Article
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  7. Review
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  9. Article
  10. 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

11 authors.

Fucheng GuoCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
Yiliang LiCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
Shu YuCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
Lu LiuJoint Influenza Research Centre (SUMC/HKU), Shantou University Medical College, Shantou, China.
Tingting LuoCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
Zhiqing PuCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
Dan XiangJoint Influenza Research Centre (SUMC/HKU), Shantou University Medical College, Shantou, China.
Xuejuan ShenCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
David M IrwinDepartment of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
Ming LiaoCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
Yongyi ShenCollege of Veterinary Medicine, South China Agricultural University, Guangzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Avian influenza A viruses (AIVs) H5N1, first identified in 1996, are highly pathogenic in domestic poultry and continue to occasionally infect humans. In this study, we sought to identify genetic changes that occurred during their multiple invasions to humans. We evaluated all available H5Nx AIV genomes. Significant signals of positive selection were detected in 29 host-shift branches. 126 parallel evolution sites were detected on these branches, including 17 well-known sites (such as T271A, A274T, T339M, Q591K, E627K, and D701N in PB2; A134V, D154N, S223N, and R497K in HA) that play roles in allowing AIVs to cross species barriers. Our study suggests that during human infections, H5Nx viruses have experienced adaptive evolution (positive selection and convergent evolution) that allowed them to adapt to their new host environments. Analyses of adaptive evolution should be useful in identifying candidate sites that play roles in human infections, which can be tested by functional experiments.

Indexed as

Avian influenza A virusconvergent evolutionH5Nxhost shifthuman infection

Identifiers

PMID31249566
PMCPMC6582624

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.