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Airborne SARS-CoV-2 in patient rooms during the Omicron wave compared to early variants

Fraenkel, Carl-Johan LU orcid ; Thuresson, Sara LU ; Medstrand, Patrik LU orcid ; Alsved, Malin LU orcid and Löndahl, Jakob LU orcid (2024) European Aerosol Conference (EAC) 2024
Abstract
The covid-19 pandemic was characterized by a series of variants of concern, different strains of SARS-CoV-2 which had a serious impact on transmission. One of these, denoted Omicron, dominated in early 2022 and caused covid-19 cases to soar. The increased transmission during the Omicron wave triggered hospitals to further strengthen airborne precautions. The reason for this surge in cases during Omicron is still not clear, but proposed explanations include increased emissions of virus in exhaled air, improved viability in air, or structural mutations of the spike protein that promote infection efficiency at the target cells.

We have previously reported findings of airborne SARS-CoV-2 in patient rooms during the primary wave, when... (More)
The covid-19 pandemic was characterized by a series of variants of concern, different strains of SARS-CoV-2 which had a serious impact on transmission. One of these, denoted Omicron, dominated in early 2022 and caused covid-19 cases to soar. The increased transmission during the Omicron wave triggered hospitals to further strengthen airborne precautions. The reason for this surge in cases during Omicron is still not clear, but proposed explanations include increased emissions of virus in exhaled air, improved viability in air, or structural mutations of the spike protein that promote infection efficiency at the target cells.

We have previously reported findings of airborne SARS-CoV-2 in patient rooms during the primary wave, when the ancestral strain was dominant, and during the introduction of the Alpha variant. The aim with this study was to compare the positivity rate of air samples in patient rooms during the Omicron and ancestral waves. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
pages
1 pages
conference name
European Aerosol Conference (EAC) 2024
conference location
Tampere, Finland
conference dates
2024-08-25 - 2024-08-30
language
English
LU publication?
yes
id
d5be9194-80ec-4e8c-b0da-1de7bef0ee0d
date added to LUP
2024-10-10 11:02:51
date last changed
2024-10-14 15:29:54
@misc{d5be9194-80ec-4e8c-b0da-1de7bef0ee0d,
  abstract     = {{The covid-19 pandemic was characterized by a series of variants of concern, different strains of SARS-CoV-2 which had a serious impact on transmission. One of these, denoted Omicron, dominated in early 2022 and caused covid-19 cases to soar. The increased transmission during the Omicron wave triggered hospitals to further strengthen airborne precautions. The reason for this surge in cases during Omicron is still not clear, but proposed explanations include increased emissions of virus in exhaled air, improved viability in air, or structural mutations of the spike protein that promote infection efficiency at the target cells.<br/><br/>We have previously reported findings of airborne SARS-CoV-2 in patient rooms during the primary wave, when the ancestral strain was dominant, and during the introduction of the Alpha variant. The aim with this study was to compare the  positivity rate of air samples in patient rooms during the Omicron and ancestral waves.}},
  author       = {{Fraenkel, Carl-Johan and Thuresson, Sara and Medstrand, Patrik and Alsved, Malin and Löndahl, Jakob}},
  language     = {{eng}},
  month        = {{08}},
  title        = {{Airborne SARS-CoV-2 in patient rooms during the Omicron wave compared to early variants}},
  url          = {{https://lup.lub.lu.se/search/files/197011590/EAC2024_Sara_Thuresson.pdf}},
  year         = {{2024}},
}