Evidence map›Paper›PMID 32825303›Full record

ReviewInternational journal of environmental research and public health2020

Can Air-Conditioning Systems Contribute to the Spread of SARS/MERS/COVID-19 Infection? Insights from a Rapid Review of the Literature.

Francesco Chirico, Angelo Sacco, Nicola Luigi Bragazzi, Nicola Magnavita

Open access · goldAbstract readReview
In one paragraph

Review in International journal of environmental research and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
12.3field-weighted citation impact, top 1% 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

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 112 citations in OpenAlex.

  1. Pooled it
  2. Article
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  7. Article
  8. Article
  9. Review
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  11. Review
  12. Cumulative effects of air pollution and climate drivers on COVID-19 multiwaves in Bucharest, Romania.Process safety and environmental protection : transactions of the Institution of Chemical Engineers, Part B · 2022
    Article
  13. Observational
  14. Article
  15. Review
  16. Article
  17. Review
  18. Passively sensing SARS-CoV-2 RNA in public transit buses.The Science of the total environment · 2022
    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

4 authors at 3 institutions in 2 countries.

Francesco ChiricoPost-Graduate School of Occupational Health, Università Cattolica del Sacro Cuore, 00168 Roma, Italy.
Angelo SaccoLocal Healthcare Unit Roma 2, 00155 Roma, Italy.
Nicola Luigi BragazziLaboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON M3J 1P3, Canada.ORCID 0000-0001-8409-868X
Nicola MagnavitaPost-Graduate School of Occupational Health, Università Cattolica del Sacro Cuore, 00168 Roma, Italy.ORCID 0000-0002-0988-7344
Università Cattolica del Sacro Cuore · ITAzienda Sanitaria Locale Roma 3 · ITYork University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The airborne transmission of SARS-CoV-2 is still debated. The aim of this rapid review is to evaluate the COVID-19 risk associated with the presence of air-conditioning systems. Original studies (both observational and experimental researches) written in English and with no limit on time, on the airborne transmission of SARS-CoV, MERS-CoV, and SARS-CoV-2 coronaviruses that were associated with outbreaks, were included. Searches were made on PubMed/MEDLINE, PubMed Central (PMC), Google Scholar databases, and medRxiv. A snowball strategy was adopted to extend the search. Fourteen studies reporting outbreaks of coronavirus infection associated with the air-conditioning systems were included. All studies were carried out in the Far East. In six out the seven studies on SARS, the role of Heating, Ventilation, and Air Conditioning (HVAC) in the outbreak was indirectly proven by the spatial and temporal pattern of cases, or by airflow-dynamics models. In one report on MERS, the contamination of HVAC by viral particles was demonstrated. In four out of the six studies on SARS-CoV-2, the diffusion of viral particles through HVAC was suspected or supported by computer simulation. In conclusion, there is sufficient evidence of the airborne transmission of coronaviruses in previous Asian outbreaks, and this has been taken into account in the guidelines released by organizations and international agencies for controlling the spread of SARS-CoV-2 in indoor environments. However, the technological differences in HVAC systems prevent the generalization of the results on a worldwide basis. The few COVID-19 investigations available do not provide sufficient evidence that the SARS-CoV-2 virus can be transmitted by HVAC systems.

Indexed as

Air ConditioningBetacoronavirusComputer SimulationCoronavirus InfectionsCOVID-19Disease OutbreaksHumansMiddle East Respiratory Syndrome CoronavirusPandemicsPneumonia, ViralSARS-CoV-2Severe Acute Respiratory Syndromeairborne transmissionMERS-CoVoutbreakpreventionsafetySARS-CoV-1SARS-CoV-2ventilationworkplace

Identifiers

PMID32825303
PMCPMC7503634
OpenAlexW3050436757

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.