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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Dent+Res 2021 ; 100 (11): 1265-1272 Nephropedia Template TP
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Mouthwashes with CPC Reduce the Infectivity of SARS-CoV-2 Variants In Vitro #MMPMID34282982
Munoz-Basagoiti J; Perez-Zsolt D; Leon R; Blanc V; Raich-Regue D; Cano-Sarabia M; Trinite B; Pradenas E; Blanco J; Gispert J; Clotet B; Izquierdo-Useros N
J Dent Res 2021[Oct]; 100 (11): 1265-1272 PMID34282982show ga
Oral mouthwashes decrease the infectivity of several respiratory viruses including SARS-CoV-2. However, the precise agents with antiviral activity in these oral rinses and their exact mechanism of action remain unknown. Here we show that cetylpyridinium chloride (CPC), a quaternary ammonium compound in many oral mouthwashes, reduces SARS-CoV-2 infectivity by inhibiting the viral fusion step with target cells after disrupting the integrity of the viral envelope. We also found that CPC-containing mouth rinses decreased more than a thousand times the infectivity of SARS-CoV-2 in vitro, while the corresponding vehicles had no effect. This activity was effective for different SARS-CoV-2 variants, including the B.1.1.7 or Alpha variant originally identified in United Kingdom, and in the presence of sterilized saliva. CPC-containing mouth rinses could therefore represent a cost-effective measure to reduce SARS-CoV-2 infectivity in saliva, aiding to reduce viral transmission from infected individuals regardless of the variants they are infected with.