Study confirms efficacy of WHO-recommended disinfectants against coronavirus

A study by researchers at Ruhr University in Bochum (Germany) has shown that disinfectants recommended by the World Health Organization (WHO) are effective against the new coronavirus, inactivating it after 30 seconds of exposure.

The first disinfectant recommended by the WHO consists of 80 percent by volume of ethanol, 1.45 percent by volume of glycerin and 0.125 percent by volume of hydrogen peroxide. Also, the other consists of 75 volume percent isopropanol, 1.45 volume percent glycerin, and 0.125 volume percent hydrogen peroxide.

According to the study, when used correctly, both alcohol-based hand sanitizers are effective against the new coronavirus. Specifically, researchers have exposed the new coronavirus for 30 seconds to the disinfectant formulations recommended by the WHO. This time period was chosen based on the recommendations for hand sanitizers. Subsequently, they tested the viruses in cell culture assays and analyzed how many viruses were still infectious.

Studies have shown that both WHO-recommended formulations inactivate the virus sufficiently after 30 seconds. Furthermore, these properties not only apply to WHO solutions, but rather to its main components, ethanol and isopropanol alcohols, which also showed adequate inactivation of the virus.

The findings reveal also that the novel coronavirus has an inactivation profile similar to those of related coronaviruses that cause Severe Acute Respiratory Syndrome (SARS), bovine coronavirus (BCoV), and Middle East Respiratory Syndrome (MERS).

Link to the paper: https://doi.org/10.1101/2020.03.10.986711

Editorial Disclaimer: information published during the 2020 COVID-19 pandemic may be updated frequently to reflect the dynamic nature of current understanding.

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