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Potential role of oral rinses targeting the viral lipid envelope in SARS-CoV-2 infection.

O'Donnell, Valerie, Thomas, David, Stanton, Richard, Maillard, Jean-Yves, Murphy, Robert C, Jones, Simon, Wakelam, MJO, Fegan, Christopher, Wise, Matthew, Bosch, Albert and Sattar, Syed 2020. Potential role of oral rinses targeting the viral lipid envelope in SARS-CoV-2 infection. Function 1 (1) 10.1093/function/zqaa002

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Abstract

Emerging studies increasingly demonstrate the importance of the throat and salivary glands as sites of virus replication and transmission in early COVID-19 disease. SARS-CoV-2 is an enveloped virus, characterised by an outer lipid membrane derived from the host cell from which it buds. While, it is highly sensitive to agents that disrupt lipid bio-membranes, there has been no discussion about the potential role of oral rinsing in preventing transmission. Here, we review known mechanisms of viral lipid membrane disruption by widely available dental mouthwash components that include ethanol, chlorhexidine, cetylpyridinium chloride, hydrogen peroxide and povidone-iodine. We also assess existing formulations for their potential ability to disrupt the SARS-CoV-2 lipid envelope, based on their concentrations of these agents, and conclude that several deserve clinical evaluation. We highlight that already published research on other enveloped viruses, including coronaviruses, directly support the idea that oral rinsing should be considered as a potential way to reduce transmission of SARS-CoV-2. Research to test this could include evaluating existing or specifically-tailored new formulations in well-designed viral inactivation assays, then in clinical trials. Population-based interventions could be undertaken with available mouthwashes, with active monitoring of outcome to determine efficacy. This is an under-researched area of major clinical need.

Item Type: Article
Status: Published
Schools: Pharmacy
Dentistry
Medicine
Systems Immunity Research Institute (SIURI)
Cardiff Institute Tissue Engineering Repair (CITER)
Subjects: R Medicine > R Medicine (General)
R Medicine > RK Dentistry
Publisher: American Physiological Society
ISSN: 2633-8823
Funders: Royal Society, Wellcome Trust
Related URLs:
Last Modified: 31 Jul 2020 15:55
URI: http://orca-mwe.cf.ac.uk/id/eprint/131962

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