Evidence map›Paper›PMID 34329379›Full record

SynthesisAnnals of work exposures and health2021

Contamination of Air and Surfaces in Workplaces with SARS-CoV-2 Virus: A Systematic Review.

John W Cherrie, Mark P C Cherrie, Alice Smith, David Holmes, Sean Semple, Susanne Steinle, Ewan Macdonald, Ginny Moore, Miranda Loh

Abstract readSystematic Review
In one paragraph

Synthesis in Annals of work exposures and health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
–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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. SARS-CoV-2 in the Air Surrounding Patients during Nebulizer Therapy.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2022
    Article
  12. Article
  13. 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.

John W CherrieInstitute of Occupational Medicine, Research Avenue North, Edinburgh, UK.ORCID 0000-0001-8901-6890
Mark P C CherrieInstitute of Occupational Medicine, Research Avenue North, Edinburgh, UK.
Alice SmithInstitute of Occupational Medicine, Research Avenue North, Edinburgh, UK.
David HolmesInstitute of Occupational Medicine, Research Avenue North, Edinburgh, UK.
Sean SempleUniversity of Stirling, Institute for Social Marketing and Health, Stirling, UK.ORCID 0000-0002-0462-7295
Susanne SteinleInstitute of Occupational Medicine, Research Avenue North, Edinburgh, UK.
Ewan MacdonaldUniversity of Glasgow, Institute of Health and Wellbeing, Glasgow, UK.
Ginny MooreNational Infection Service, Public Health England, Porton Down, Salisbury, UK.
Miranda LohInstitute of Occupational Medicine, Research Avenue North, Edinburgh, UK.ORCID 0000-0002-4285-0375

Funding

Chief Scientist Office COV/IOM/20/01Scottish Chief Scientists Office COV/IOM/20/01
6 · The paper itself

Abstract

objectivesThis systematic review aimed to evaluate the evidence for air and surface contamination of workplace environments with SARS-CoV-2 RNA and the quality of the methods used to identify actions necessary to improve the quality of the data.

methodsWe searched Web of Science and Google Scholar until 24 December 2020 for relevant articles and extracted data on methodology and results.

resultsThe vast majority of data come from healthcare settings, with typically around 6% of samples having detectable concentrations of SARS-CoV-2 RNA and almost none of the samples collected had viable virus. There were a wide variety of methods used to measure airborne virus, although surface sampling was generally undertaken using nylon flocked swabs. Overall, the quality of the measurements was poor. Only a small number of studies reported the airborne concentration of SARS-CoV-2 virus RNA, mostly just reporting the detectable concentration values without reference to the detection limit. Imputing the geometric mean air concentration assuming the limit of detection was the lowest reported value, suggests typical concentrations in healthcare settings may be around 0.01 SARS-CoV-2 virus RNA copies m-3. Data on surface virus loading per unit area were mostly unavailable.

conclusionsThe reliability of the reported data is uncertain. The methods used for measuring SARS-CoV-2 and other respiratory viruses in work environments should be standardized to facilitate more consistent interpretation of contamination and to help reliably estimate worker exposure.

Indexed as

COVID-19Occupational ExposureHumansReproducibility of ResultsRNA, ViralSARS-CoV-2WorkplaceRNA, ViralaerosolfomitehospitalSARS-CoV-2surfacetransportationvirus

Identifiers

PMID34329379
PMCPMC8385829

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.