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SARS-CoV-2 Detection Rates from Surface Samples Do Not Implicate Public Surfaces as Relevant Sources for Transmission
- Contaminated surfaces have been discussed as a possible source of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). Under experimental conditions, SARS-CoV-2 can remain infectious on surfaces for several days. However, the frequency of SARS-CoV-2 detection on surfaces in healthcare settings and the public is currently not known. A systematic literature review was performed. On surfaces around COVID-19 cases in healthcare settings (42 studies), the SARS-CoV2 RNA detection rates mostly were between 0% and 27% (Ct values mostly > 30). Detection of infectious SARS-CoV-2 was only successful in one of seven studies in 9.2% of 76 samples. Most of the positive samples were obtained next to a patient with frequent sputum spitting during sampling. Eight studies were found with data from public surfaces and RNA detection rates between 0% and 22.1% (Ct values mostly > 30). Detection of infectious virus was not attempted. Similar results were found in samples from surfaces around confirmed COVID-19 cases in non-healthcare settings (7 studies) and from personal protective equipment (10 studies). Therefore, it seems plausible to assume that inanimate surfaces are not a relevant source for transmission of SARS-CoV-2. In public settings, the associated risks of regular surface disinfection probably outweigh the expectable health benefit
Author: | Günter Kampf, Stephanie Pfaender, Emanuel Goldman, Eike Steinmann |
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URN: | urn:nbn:de:gbv:9-opus-65295 |
DOI: | https://doi.org/10.3390/hygiene1010003 |
ISSN: | 2673-947X |
Parent Title (English): | Hygiene |
Publisher: | MDPI |
Place of publication: | Basel |
Document Type: | Article |
Language: | English |
Date of first Publication: | 2021/05/21 |
Release Date: | 2022/11/22 |
Tag: | RNA; SARS-CoV-2; contamination; infectious virus; surface |
GND Keyword: | - |
Volume: | 1 |
Issue: | 1 |
Page Number: | 17 |
Faculties: | Universitätsmedizin / Institut für Hygiene und Umweltmedizin |
Licence (German): | Creative Commons - Namensnennung |