Over the past several months, researchers in the United States and abroad have examined mouthwashes, oral antiseptics and nasal rinses in controlled laboratory settings to see whether they can effectively inactivate the new coronavirus and other viruses within the same family.
A team in Germany found that when several products, including Listerine, were applied to strains of the novel coronavirus for 30 seconds, they “significantly reduced viral infectivity to undetectable levels,” according to a study published in July in the Journal of Infectious Diseases.
Researchers at Pennsylvania State University College of Medicine recently released similar findings, reporting that Listerine and Listerine-like products could inactivate more than 99.9% of a virus similar to the one that causes covid-19 with just 30 seconds of exposure. In a study published in the Journal of Medical Virology, the scientists wrote that their results suggest mouthwash could potentially decrease the risk of transmission of the novel coronavirus and “provide an additional level of protection.”
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