Evidence map›Paper›PMID 25691635›Full record

ArticleAntimicrobial agents and chemotherapy2015

Characterization of a large cluster of influenza A(H1N1)pdm09 viruses cross-resistant to oseltamivir and peramivir during the 2013-2014 influenza season in Japan.

Emi Takashita, Maki Kiso, Seiichiro Fujisaki, Masaru Yokoyama, Kazuya Nakamura, Masayuki Shirakura, Hironori Sato, Takato Odagiri, Yoshihiro Kawaoka, Masato Tashiro

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
8.7field-weighted citation impact, top 2% 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

47 citing papers in PubMed, 81 citations in OpenAlex.

  1. Article
  2. Fluorescence Imaging of Viral Sialidase Activity Using a Fluorogenic Probe.Advances in experimental medicine and biology · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. An outbreak of influenza A(H1N1)pdm09 antigenic variants exhibiting cross-resistance to oseltamivir and peramivir in an elementary school in Japan, September 2024.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2024
    Article
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  9. Observational
  10. Review
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  14. Review
  15. Antivirals Targeting the Neuraminidase.Cold Spring Harbor perspectives in medicine · 2022
    Review
  16. Article
  17. Review
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  19. Article
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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

10 authors at 2 institutions in 2 countries.

Emi TakashitaInfluenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
Maki KisoDivision of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan.
Seiichiro FujisakiInfluenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
Masaru YokoyamaPathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan.
Kazuya NakamuraInfluenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
Masayuki ShirakuraInfluenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
Hironori SatoPathogen Genomics Center, National Institute of Infectious Diseases, Tokyo, Japan.
Takato OdagiriInfluenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
Yoshihiro KawaokaDivision of Virology, Department of Microbiology and Immunology, Institute of Medical Science, University of Tokyo, Tokyo, Japan ERATO Infection-Induced Host Responses Project, Japan Science and Technology Agency, Saitama, Japan Department of Special Pathogens, International Research Center for Infectious Diseases, Institute of Medical Science, University of Tokyo, Tokyo, Japan Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Masato TashiroInfluenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan mtashiro2@gmail.com.
National Institute of Infectious Diseases · JPJapan Science and Technology Agency · JP

Funding

NIAID NIH HHS HHSN266200700010CPHS HHS HHSN266200700010C
6 · The paper itself

Abstract

Between September 2013 and July 2014, 2,482 influenza 2009 pandemic A(H1N1) [A(H1N1)pdm09] viruses were screened in Japan for the H275Y substitution in their neuraminidase (NA) protein, which confers cross-resistance to oseltamivir and peramivir. We found that a large cluster of the H275Y mutant virus was present prior to the main influenza season in Sapporo /: Hokkaido, with the detection rate for this mutant virus reaching 29% in this area. Phylogenetic analysis suggested the clonal expansion of a single mutant virus in Sapporo /: Hokkaido. To understand the reason for this large cluster, we examined the in vitro and in vivo properties of the mutant virus. We found that it grew well in cell culture, with growth comparable to that of the wild-type virus. The cluster virus also replicated well in the upper respiratory tract of ferrets and was transmitted efficiently between ferrets by way of respiratory droplets. Almost all recently circulating A(H1N1)pdm09 viruses, including the cluster virus, possessed two substitutions in NA, V241I and N369K, which are known to increase replication and transmission fitness. A structural analysis of NA predicted that a third substitution (N386K) in the NA of the cluster virus destabilized the mutant NA structure in the presence of the V241I and N369K substitutions. Our results suggest that the cluster virus retained viral fitness to spread among humans and, accordingly, caused the large cluster in Sapporo/Hokkaido. However, the mutant NA structure was less stable than that of the wild-type virus. Therefore, once the wild-type virus began to circulate in the community, the mutant virus could not compete and faded out.

Indexed as

Drug Resistance, ViralAcids, CarbocyclicAntiviral AgentsCyclopentanesGuanidinesHumansInfluenza A Virus, H1N1 SubtypeJapanOseltamivirViral ProteinsAcids, CarbocyclicAntiviral AgentsCyclopentanesGuanidinesOseltamivirperamivirViral Proteins

Identifiers

PMID25691635
PMCPMC4394804
OpenAlexW2103212730

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.