If these positive results are reflected in Cardiff University's clinical trial, CPC-based mouthwashes... could become an important addition to people's routine, together with hand washing, physical distancing and wearing masks, both now and in the future," Dr. Nick Claydon, a specialist periodontist, told the BBC.

The university report says that mouthwashes with at least 0.07% cetypyridinium chloride (CPC) revealed “promising signs” of eliminating the virus in the lab. The report…