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Virus stays for 3 days on plastic, stainless steel: Study
The virus that causes COVID-19 remains for several hours to days on surfaces and in aerosols -- detectable for up to three hours in aerosols, up to four hours on copper, up to 24 hours on cardboard and up to two to three days on plastic and stainless steel, a new study has claimed.
Los Angeles : The virus that causes COVID-19 remains for several hours to days on surfaces and in aerosols -- detectable for up to three hours in aerosols, up to four hours on copper, up to 24 hours on cardboard and up to two to three days on plastic and stainless steel, a new study has claimed.
People may acquire the coronavirus through the air and after touching contaminated objects and this is the reason new cases are soaring globally.
"This virus is quite transmissible through relatively casual contact, making this pathogen very hard to contain," said James Lloyd-Smith, co-author and professor of ecology and evolutionary biology at University of California-Los Angeles.
"If you're touching items that someone else has recently handled, be aware they could be contaminated and wash your hands," he said in a paper published in the New England Journal of Medicine.
The study attempted to mimic the virus being deposited onto everyday surfaces in a household or hospital setting by an infected person through coughing or touching objects, for example.
The scientists then investigated how long the virus remained infectious on these surfaces.
In February, Lloyd-Smith and colleagues reported in the journal eLife that screening travellers for COVID-19 is not very effective.
People infected with the virus -- officially named SARS-CoV-2 -- may be spreading the virus without knowing they have it or before symptoms appear.
The biology and epidemiology of the virus make infection extremely difficult to detect in its early stages because the majority of cases show no symptoms for five days or longer after exposure.
"Many people won't have developed symptoms yet," Lloyd-Smith said. "Based on our earlier analysis of flu pandemic data, many people may not choose to disclose if they do know".
Avoid close contact with people who are sick,avoid touching your eyes, nose and mouth, stay home when you are sick, cover coughs or sneezes with a tissue, and dispose of the tissue in the trash.
Clean and disinfect frequently touched objects and surfaces using a household cleaning spray or wipe, said researchers.
Meanwhile, President Donald Trump on Friday discounted the possibility of a national lockdown after two populous US states -- California and New York -- issued tough new stay-at-home orders to combat the spread of the coronavirus.
Trump said California and New York were "really two hotbeds" but the problem was not so severe in other regions as to warrant a nationwide lockdown. "So no, we're working with the governors and I don't think we'll ever find that necessary," he said.
