Coronaviruses belong to the class of 'enveloped viruses', meaning they are covered by a fatty layer that is vulnerable to certain chemicals.
A team of international researchers say mouthwash could destroy the outermost layer or 'envelope' of the virus, preventing its replication in the mouth and throat.
The scientists say there is an urgent need to test the effectiveness of mouthwash in trials, although there is currently no clinical evidence that it would be successful.
'Safe use of mouthwash – as in gargling – has so far not been considered by public health bodies in the UK,' said lead author Professor O’Donnell, co-director of Cardiff University’s Systems Immunity Research Institute.
'In test tube experiments and limited clinical studies, some mouthwashes contain enough of known virucidal ingredients to effectively target lipids in similar enveloped viruses.
'What we don’t know yet is whether existing mouthwashes are active against the lipid membrane of SARS-CoV-2.
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[Almost all respiratory viruses start in the throat. Gargling is a first-line defense, with or without studies to verify. --Editor]
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