Evidence map›Paper›PMID 35017676›Full record

ArticleNature microbiology2022

Increased small particle aerosol transmission of B.1.1.7 compared with SARS-CoV-2 lineage A in vivo.

Julia R Port, Claude Kwe Yinda, Victoria A Avanzato, Jonathan E Schulz, Myndi G Holbrook, Neeltje van Doremalen, Carl Shaia, Robert J Fischer, Vincent J Munster

Open access · bronzeAbstract read
In one paragraph

Article in Nature microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
7.0field-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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Broad beta-CoV immunity and transmission blockade by a single-dose live-attenuated vaccine with atypical codon usage.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  10. Molecular determinants of cross-species transmission in emerging viral infections.Microbiology and molecular biology reviews : MMBR · 2024
    Review
  11. Article
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  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. The evolution of SARS-CoV-2.Nature reviews. Microbiology · 2023
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Julia R Port *Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
Claude Kwe Yinda *Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
Victoria A AvanzatoLaboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
Jonathan E SchulzLaboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
Myndi G HolbrookLaboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.ORCID http://orcid.org/0000-0003-2376-2633
Neeltje van DoremalenLaboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.ORCID http://orcid.org/0000-0003-4368-6359
Carl ShaiaLaboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.ORCID http://orcid.org/0000-0001-8907-8821
Robert J FischerLaboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
Vincent J MunsterLaboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA. vincent.munster@nih.gov.ORCID http://orcid.org/0000-0002-2288-3196
National Institutes of Health · US

Funding

Virus Ecology UnitZIAAI001179 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MUNSTER, VINCENT · 2013 to 2025
$24.3M
Virus Ecology Unit - COVID-19 responseZIAAI001289 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI MUNSTER, VINCENT · 2020 to 2025
$4.7M
Intramural NIH HHS ZIA AI001179Intramural NIH HHS ZIA AI001289
6 · The paper itself

Abstract

The major transmission route for SARS-CoV-2 is airborne. However, previous studies could not elucidate the contribution between large droplets and aerosol transmission of SARS-CoV-2 and its variants. Here, we designed and validated an optimized transmission caging setup, which allows for the assessment of aerosol transmission efficiency at various distances. At a distance of 2 m, only particles of <5 μm traversed between cages. Using this setup, we investigated the relative efficiency of aerosol transmission between the SARS-CoV-2 Alpha variant (B.1.1.7) and lineage A in Syrian hamsters. Aerosol transmission of both variants was confirmed in all sentinels after 24 h of exposure as demonstrated by respiratory virus shedding and seroconversion. Productive transmission also occurred after 1 h of exposure, highlighting the efficiency of this transmission route. Interestingly, after donors were infected with a mix of both variants, the Alpha variant outcompeted the lineage A variant in an airborne transmission chain. Overall, these data indicate that a lower infectious dose of the Alpha variant, compared to lineage A, could be sufficient for successful transmission. This highlights the continuous need to assess emerging variants and the development for pre-emptive transmission mitigation strategies.

Indexed as

AerosolsAnimalsCOVID-19FemaleMaleMesocricetusSARS-CoV-2Viral LoadVirus SheddingAerosols

Identifiers

PMID35017676
PMCPMC11218742
OpenAlexW4205867676

What OpenQuestion holds

Textmetadata
LicenceTDM
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.