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The Scene New Study Shows Coronavirus Survives on Skin 5 times Longer Than the Flu

New Study Shows Coronavirus Survives on Skin 5 times Longer Than the Flu

New Study Shows Coronavirus Survives on Skin 5 times Longer Than the Flu
By AFP
October 20, 2020
Remember to keep washing your hands: the coronavirus remains active on human skin for nine hours, according to Japanese researchers

Additional reporting by Andrea Saadan

The coronavirus remains active on human skin for nine hours, Japanese researchers have found, in a discovery they said showed the need for frequent hand washing to combat the Covid-19 pandemic.

The pathogen that causes the flu survives on human skin for about 1.8 hours by comparison, said the study published this month in the Clinical Infectious Diseases journal. 

(Related: Coronavirus Can Survive on Surfaces Like Phone Screens and Banknotes for 28 Days, Study Shows)

"The nine-hour survival of SARS-CoV-2 (the virus strain that causes Covid-19) on human skin may increase the risk of contact transmission in comparison with IAV (influenza A virus), thus accelerating the pandemic," it said. 

Earlier this month, it was discovered that the coronavirus can survive on items such as banknotes and phones for up to 28 days in cool, dark conditions. A study by Australia's national science agency found that at 20 degrees Celsius, Sars-CoV-2 was "extremely robust" on smooth surfaces—like mobile phone screens.

The research team tested skin collected from autopsy specimens, about one day after death. 

Both the coronavirus and the flu virus are inactivated within 15 seconds by applying ethanol, which is used in hand sanitisers.

(Related: How to Clean Your Smartphone, Tablet and Laptop to Protect Yourself From Covid-19)

"The longer survival of Sars-CoV-2 on the skin increases contact-transmission risk; however, hand hygiene can reduce this risk," the study said.

The study backs World Health Organization guidance for regular and thorough hand washing to limit transmission of the virus, which has infected nearly 40 million people around the world since it first emerged in China late last year.

(Related: Coronavirus Tips: Droplet Study Shows How the Different Kinds of Face Masks Compare)

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The Scene Overcoming Covid-19 covid-19 coronavirus hygiene viruses medical studies global pandemic health crisis

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