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Alcohol-free hand sanitiser just as effective against COVID as alcohol-based versions

Alcohol-free hand sanitiser just as effective against COVID as alcohol-based versions

A new study from researchers at Brigham Young University finds that alcohol-free hand sanitiser is just as effective at disinfecting surfaces from the COVID-19 virus as alcohol-based products. The BYU scientists who conducted the study suspected that the CDC`s preference for alcohol sanitizer stemmed from as-yet limited research on what really works to disinfect SARS-CoV-2.To explore other options, they treated samples of the novel coronavirus with benzalkonium chloride, which is commonly used in alcohol-free hand sanitisers, and several other quaternary ammoniums compound regularly found in disinfectants.

In most of the test cases, the compounds wiped out at least 99.9 per cent of the virus within 15 seconds."Our results indicate that alcohol-free hand sanitiser works just as well, so we could, maybe even should, be using it to control COVID," said lead study author Benjamin Ogilvie.

Alcohol-free hand sanitisers, which are also effective against the common cold and flu viruses, have a number of advantages over their alcohol-based counterparts, Ogilvie explained."Benzalkonium chloride can be used in much lower concentrations and does not cause the familiar 'burn' feeling you might know from using alcohol hand sanitiser. It can make life easier for people who have to sanitise hands a lot, like healthcare workers, and maybe even increase compliance with sanitizing guidelines," he said.

In the face of shortages, "having more options to disinfect hospitals and public places are critical," added PhD student Antonio Solis Leal, who conducted the study`s experiments. Switching to alcohol-free hand sanitiser is logistically simple as well." People were already using it before 2020," said BYU professor and coauthor Brad Berges."It just seems like, during this pandemic, the non-alcohol-based hand sanitisers have been thrown by the wayside because the government was saying, 'we don`t know that these work, due to the novelty of the virus and the unique lab conditions required to run tests on it," added Berges.

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