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Australian scientists have discovered that the SARS-CoV-2 coronavirus causing the infection COVID-19, can survive until 28 days on common surfaces such as glass cell phone screens and stainless steel.
Researchers at the CSIRO National Research Center, published in the Virology Journal, found that the coronavirus survived at lower temperatures, as well as on non-porous or very smooth surfaces (compared to porous and uneven ones). surfaces such as cotton, where it is less preserved). Also lasts longer on paper bank notes that in those of the plastic material.
“Our findings show that SARS-CoV-2 can remain contagious on surfaces for long periods of time, reinforcing the need for good practices such as regular hand washing and surface cleaning,” said Dr. Debbie Eagles. , Deputy Director of the Australian Centers for Disease Control (ACDP) at CSIRO.
“At a temperature of 20 degrees Celsius, which is roughly room temperature, we found the virus to be extremely resistant, surviving for 28 days on smooth surfaces, such as glass on mobile phone screens. “Comparatively similar experiments with influenza A virus have found that it survives on surfaces for up to 17 days, showing how much more resistant SARS-CoV-2 is,” he added.
Experiments at temperatures of 30 and 40 degrees Celsius have shown that the higher the temperature, the shorter the survival time of the coronavirus. According to Australian scientists, the amount of coronavirus required (i.e. infectious dose) to transmit Covid-19 infection from an infected surface remains under investigation.
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