Evidence map›Paper›PMID 36068657›Full record

ArticleAnnals of work exposures and health2023

Detection of SARS-CoV-2 in Air and on Surfaces in Rooms of Infected Nursing Home Residents.

Kimberly J Linde, Inge M Wouters, Jan A J W Kluytmans, Marjolein F Q Kluytmans-van den Bergh, Suzan D Pas, Corine H GeurtsvanKessel, Marion P G Koopmans, Melanie Meier, Patrick Meijer, Ceder R Raben and 5 more

Open access · hybridAbstract read
In one paragraph

Article in Annals of work exposures and health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Air Change Rate and SARS-CoV-2 Exposure in Hospitals and Residences: A Meta-Analysis.Aerosol science and technology : the journal of the American Association for Aerosol Research · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Review
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

15 authors at 3 institutions in 1 country.

Kimberly J LindeInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.ORCID 0000-0003-1190-9538
Inge M WoutersInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
Jan A J W KluytmansJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Marjolein F Q Kluytmans-van den BerghJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
Suzan D PasMicrovida Location Amphia/Bravis, Breda/Roosendaal, The Netherlands.
Corine H GeurtsvanKesselDepartment of ViroScience, Erasmus MC, Rotterdam, The Netherlands.
Marion P G KoopmansDepartment of ViroScience, Erasmus MC, Rotterdam, The Netherlands.ORCID 0000-0002-5204-2312
Melanie MeierMijzo, Waalwijk, The Netherlands.
Patrick MeijerInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
Ceder R RabenInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
Jack SpithovenInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
Monique H G Tersteeg-ZijderveldInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
Dick J J HeederikInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
Wietske DohmenInstitute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands.
COCON Consortium
Utrecht University · NLErasmus MC · NLBravis Ziekenhuis · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is an ongoing debate on airborne transmission of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) as a risk factor for infection. In this study, the level of SARS-CoV-2 in air and on surfaces of SARS-CoV-2 infected nursing home residents was assessed to gain insight in potential transmission routes. During outbreaks, air samples were collected using three different active and one passive air sampling technique in rooms of infected patients. Oropharyngeal swabs (OPS) of the residents and dry surface swabs were collected. Additionally, longitudinal passive air samples were collected during a period of 4 months in common areas of the wards. Presence of SARS-CoV-2 RNA was determined using RT-qPCR, targeting the RdRp- and E-genes. OPS, samples of two active air samplers and surface swabs with Ct-value ≤35 were tested for the presence of infectious virus by cell culture. In total, 360 air and 319 surface samples from patient rooms and common areas were collected. In rooms of 10 residents with detected SARS-CoV-2 RNA in OPS, SARS-CoV-2 RNA was detected in 93 of 184 collected environmental samples (50.5%) (lowest Ct 29.5), substantially more than in the rooms of residents with negative OPS on the day of environmental sampling (n = 2) (3.6%). SARS-CoV-2 RNA was most frequently present in the larger particle size fractions [>4 μm 60% (6/10); 1-4 μm 50% (5/10); <1 μm 20% (2/10)] (Fischer exact test P = 0.076). The highest proportion of RNA-positive air samples on room level was found with a filtration-based sampler 80% (8/10) and the cyclone-based sampler 70% (7/10), and impingement-based sampler 50% (5/10). SARS-CoV-2 RNA was detected in 10 out of 12 (83%) passive air samples in patient rooms. Both high-touch and low-touch surfaces contained SARS-CoV-2 genome in rooms of residents with positive OPS [high 38% (21/55); low 50% (22/44)]. In one active air sample, infectious virus in vitro was detected. In conclusion, SARS-CoV-2 is frequently detected in air and on surfaces in the immediate surroundings of room-isolated COVID-19 patients, providing evidence of environmental contamination. The environmental contamination of SARS-CoV-2 and infectious aerosols confirm the potential for transmission via air up to several meters.

Indexed as

COVID-19Occupational ExposureHumansNursing HomesRNA, ViralSARS-CoV-2RNA, Viralair levelsnursing homeSARS-CoV-2surface

Identifiers

PMID36068657
PMCPMC9834894
OpenAlexW4294839606

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.