Evidence map›Paper›PMID 32097448›Full record

ArticlePLoS pathogens2020

Characterising viable virus from air exhaled by H1N1 influenza-infected ferrets reveals the importance of haemagglutinin stability for airborne infectivity.

Anika Singanayagam, Jie Zhou, Ruth A Elderfield, Rebecca Frise, Jonathan Ashcroft, Monica Galiano, Shahjahan Miah, Laura Nicolaou, Wendy S Barclay

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 5% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Chronic CRYPTOCHROME deficiency enhances cell-intrinsic antiviral defences.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Omicron breakthrough infections in vaccinated or previously infected hamsters.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

9 authors at 3 institutions in 2 countries.

Anika SinganayagamDepartment of Medicine, St. Marys Campus, Imperial College, London, United Kingdom.ORCID 0000-0002-2572-0173
Jie ZhouDepartment of Medicine, St. Marys Campus, Imperial College, London, United Kingdom.
Ruth A ElderfieldDepartment of Medicine, St. Marys Campus, Imperial College, London, United Kingdom.
Rebecca FriseDepartment of Medicine, St. Marys Campus, Imperial College, London, United Kingdom.ORCID 0000-0002-5522-623X
Jonathan AshcroftDepartment of Medicine, St. Marys Campus, Imperial College, London, United Kingdom.ORCID 0000-0002-6224-4233
Monica GalianoVirus Reference Department, Public Health England, Colindale, United Kingdom.
Shahjahan MiahVirus Reference Department, Public Health England, Colindale, United Kingdom.ORCID 0000-0001-7810-3497
Laura NicolaouDepartment of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland, United States of America.
Wendy S BarclayDepartment of Medicine, St. Marys Campus, Imperial College, London, United Kingdom.ORCID 0000-0002-3948-0895
Imperial College London · GBPublic Health England · GBJohns Hopkins University · US

Funding

National Centre for the Replacement, Refinement and Reduction of Animals in Research G1000033/1National Centre for the Replacement, Refinement and Reduction of Animals in Research NC/K00042X/1Wellcome TrustWellcome Trust 200187/Z/15/ZWellcome Trust WT105736MA
6 · The paper itself

Abstract

The transmissibility and pandemic potential of influenza viruses depends on their ability to efficiently replicate and be released from an infected host, retain viability as they pass through the environment, and then initiate infection in the next host. There is a significant gap in knowledge about viral properties that enable survival of influenza viruses between hosts, due to a lack of experimental methods to reliably isolate viable virus from the air. Using a novel technique, we isolate and characterise infectious virus from droplets emitted by 2009 pandemic H1N1-infected ferrets. We demonstrate that infectious virus is predominantly released early after infection. A virus containing a mutation destabilising the haemagglutinin (HA) surface protein displayed reduced survival in air. Infectious virus recovered from droplets exhaled by ferrets inoculated with this virus contained mutations that conferred restabilisation of HA, indicating the importance of influenza HA stability for between-host survival. Using this unique approach can improve knowledge about the determinants and mechanisms of influenza transmissibility and ultimately could be applied to studies of airborne virus exhaled from infected people.

Indexed as

AirAir MicrobiologyAnimalsCell LineDisease Transmission, InfectiousFerretsHemagglutinin Glycoproteins, Influenza VirusHemagglutininsHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanMicrobial ViabilityOrthomyxoviridae InfectionsH1N1 virus hemagglutininHemagglutinin Glycoproteins, Influenza VirusHemagglutinins

Identifiers

PMID32097448
PMCPMC7059951
OpenAlexW3007876550

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.