Researchers at the Commonwealth Scientific and Industrial Research Organization (CSIRO), Australia’s National Science Agency, have found that the coronavirus can last up to 28 days on surfaces.
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This suggests that the virus can remain infectious for a much longer period of time than is generally thought. Researchers also found that COVID-19 survives better in cooler temperatures.
The study, conducted at the Australian Center for Disease Preparedness (ACDP) in Geelong, Victoria, measured the survival rate for infectious SARS-CoV-2, which was suspended in the standard ASTM E2197 matrix, on several common surface types.
The researchers conducted all the experiments in the dark to negate the effects of UV rays. Research has found that at 40 degrees Celsius, the virus can last less than 16 hours on cotton and 24-48 hours on glass, steel, paper, and vinyl. Meanwhile, at a temperature of 20 degrees Celsius, the virus is capable hang on the surface paper money, including banknotes for 28 days.
“The data presented in this study show that infectious SARS-CoV-2 can be recovered from non-porous surfaces for at least 28 days at temperatures and humidity of around 20 degrees Celsius and 50% RH. Increasing the temperature while maintaining humidity drastically reduces the viability of the virus to only 24 hours at 40 degrees Celsius, “the study said. Times Now News.
Recently, research has shown that corona virus can remain transmitted via airborne particles for more than three hours.
“Determining how long a virus actually stays on surfaces allows us to more accurately predict and reduce its spread, and do a better job of protecting people,” said Dr. Larry Marshall, Chief Executive of CSIRO.
Researchers believe that these results can help improve risk mitigation procedures to prevent the spread of COVID-19.