Evidence map›Paper›PMID 23408893›Full record

ArticlePLoS pathogens2013

Isolation of a novel swine influenza virus from Oklahoma in 2011 which is distantly related to human influenza C viruses.

Ben M Hause, Mariette Ducatez, Emily A Collin, Zhiguang Ran, Runxia Liu, Zizhang Sheng, Anibal Armien, Bryan Kaplan, Suvobrata Chakravarty, Adam D Hoppe and 3 more

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 236 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
236citing papers in PubMed, 1 pooled it
8.8field-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

236 citing papers in PubMed, 1 synthesis or guideline pooled it, 353 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Efficient replication of influenza D virus in the human airway underscores zoonotic potential.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Influenza D Virus in Black Donkeys, Northern China.Emerging infectious diseases · 2025
    Article
  19. Review
  20. Review

176 more citing papers are in PubMed but not listed here.

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

13 authors at 4 institutions in 2 countries.

Ben M HauseNewport Laboratories, Worthington, Minnesota, United States of America. bhause@newportlabs.com
Mariette Ducatez
Emily A Collin
Zhiguang Ran
Runxia Liu
Zizhang Sheng
Anibal Armien
Bryan Kaplan
Suvobrata Chakravarty
Adam D Hoppe
Richard J Webby
Randy R Simonson
Feng Li
South Dakota State University · USSt. Jude Children's Research Hospital · USNewport Hospital · USUniversity of Minnesota · US

Funding

NIAID NIH HHS HHSN266200700005C
6 · The paper itself

Abstract

Of the Orthomyxoviridae family of viruses, only influenza A viruses are thought to exist as multiple subtypes and has non-human maintenance hosts. In April 2011, nasal swabs were collected for virus isolation from pigs exhibiting influenza-like illness. Subsequent electron microscopic, biochemical, and genetic studies identified an orthomyxovirus with seven RNA segments exhibiting approximately 50% overall amino acid identity to human influenza C virus. Based on its genetic organizational similarities to influenza C viruses this virus has been provisionally designated C/Oklahoma/1334/2011 (C/OK). Phylogenetic analysis of the predicted viral proteins found that the divergence between C/OK and human influenza C viruses was similar to that observed between influenza A and B viruses. No cross reactivity was observed between C/OK and human influenza C viruses using hemagglutination inhibition (HI) assays. Additionally, screening of pig and human serum samples found that 9.5% and 1.3%, respectively, of individuals had measurable HI antibody titers to C/OK virus. C/OK virus was able to infect both ferrets and pigs and transmit to naive animals by direct contact. Cell culture studies showed that C/OK virus displayed a broader cellular tropism than a human influenza C virus. The observed difference in cellular tropism was further supported by structural analysis showing that hemagglutinin esterase (HE) proteins between two viruses have conserved enzymatic but divergent receptor-binding sites. These results suggest that C/OK virus represents a new subtype of influenza C viruses that currently circulates in pigs that has not been recognized previously. The presence of multiple subtypes of co-circulating influenza C viruses raises the possibility of reassortment and antigenic shift as mechanisms of influenza C virus evolution.

Indexed as

AnimalsAntibodies, ViralAntigens, ViralBase SequenceCell Culture TechniquesFerretsGammainfluenzavirusGenome, ViralHemagglutination Inhibition TestsHemagglutinins, ViralHost SpecificityHumansMaleModels, MolecularMolecular Sequence DataOklahomaAntibodies, ViralAntigens, Viralhemagglutinin esteraseHemagglutinins, ViralViral Fusion Proteins

Identifiers

PMID23408893
PMCPMC3567177
OpenAlexW2055084975

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.