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Besides hand washing and other hygienic measures, mouthwash could become a routine part of people’s daily habits after preliminary lab tests from Cardiff University found it could fight the coronavirus in 30 seconds.
These results, which have yet to be peer-reviewed, come from a 12-week study where mouthwashes containing at least 0.07 percent cetypyridinium chloride (CPC) were found to show “Promising signs” of killing the virus.
In lab tests, scientists at the university worked with various brands of mouthwash, including Listerine and Dentyl. By mimicking the conditions of passage of a person’s nasolabial / oropharynx, they tested how various ingredients in the mouthwash are killing the virus.
In their report, titled The Virucidal Effectiveness of Oral Rinse Components Against SARS-CoV-2 In Vitro, the researchers note that three of the mouthwashes tested completely eradicated the virus in the lab.
These first results from Cardiff are not the same as the search for a cure: There is no indication that mouthwash has an impact on the virus if it passes from human saliva to lung tissue, for example.
Dr Nick Claydon, a specialist periodontist, told The Independent he believes the research so far has been “very valuable”, adding: “If these positive results are reflected in the University’s clinical trial from Cardiff, CPC-based mouthwashes… could become an important addition to the routine, along with hand washing, physical distancing and wearing masks, now and in the future.
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Next, for scientists, a clinical trial will take place that will examine the effectiveness of mouthwash in reducing coronavirus levels in COVID-19 patients at University Hospital of Wales. The results of this study are expected to be published in early 2021.
(Source: Cardiff University)
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