Research finds coronavirus can survive on phone screens for 28 days


node:	Research finds coronavirus can survive on phone screens for 28 days
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parent:	Covid-19 / Novel Coronavirus (2019-nCoV)
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Research finds coronavirus can survive on phone screens for 28 days
https://www.engadget.com/coronavirus-flu-virus-smartphone-screens-080440373.html

The virus that causes COVID-19 can stay active on smooth surfaces like smartphones, metal surfaces and paper money for much longer than the flu virus, according to researchers from Australia’s national science agency. They found that it can remain viable for up to 28 days, albeit in a very controlled environment. Under the same conditions, the influenza virus remains infectious for just 17 days, according to the study.

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Prof Ron Eccles, former director Common Cold Centre at Cardiff University, criticised the study and said the suggestion that the virus could survive for 28 days was causing "unnecessary fear in the public".
"Viruses are spread on surfaces from mucus in coughs and sneezes and dirty fingers and this study did not use fresh human mucus as a vehicle to spread the virus," he said.
"Fresh mucus is a hostile environment for viruses as it contains lots of white cells that produce enzymes to destroy viruses and can also contain antibodies and other chemicals to neutralise viruses.
"In my opinion infectious viruses will only persist for hours in mucus on surfaces rather than days."

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It was conducted at a constant 68 degree F temperature in dark conditions to negate the effects of UV light, far from real-world conditions. The experiment also didn’t use fresh mucous — normally present with viruses on surfaces — which contain white cells and antibodies.