Coronavirus «Can Survive For 28 Days On Surfaces» : Study.

NDTV News

NDTV.com provides latest news from India and the world. Get today’s news headlines from Business, Technology, Bollywood, Cricket, videos, photos, live news coverage and exclusive breaking news from India.

https://www.ndtv.com/

Coronavirus 'Can Survive For 28 Days On Surfaces': Study

The coronavirus can survive on items such as banknotes and phones for up to 28 days.

Brisbane, Australia:

The coronavirus that causes Covid-19 can survive on items such as banknotes and phones for up to 28 days in cool, dark conditions, according to a study by Australia's national science agency.

Researchers at CSIRO's disease preparedness centre tested the longevity of SARS-CoV-2 in the dark at three temperatures, showing survival rates decreased as conditions became hotter, the agency said Monday.

The scientists found that at 20 degrees Celsius (68 degrees Fahrenheit), SARS-CoV-2 was "extremely robust" on smooth surfaces -- like mobile phone screens -- surviving for 28 days on glass, steel and plastic banknotes.

At 30 degrees Celsius (86 degrees Fahrenheit), the survival rate dropped to seven days and plunged to just 24 hours at 40 degrees Celsius (104 degrees Fahrenheit).

The virus survived for shorter periods on porous surfaces such as cotton -- up to 14 days at the lowest temperatures and less than 16 hours at the highest -- the researchers said.

This was "significantly longer" than previous studies which found the disease could survive for up to four days on non-porous surfaces, according to the paper published in the peer-reviewed Virology Journal.

Trevor Drew, director of the Australian Centre for Disease Preparedness, said the study involved drying samples of the virus on different materials before testing them, using an "extremely sensitive" method that found traces of live virus able to infect cell cultures.

"This doesn't mean to say that that amount of virus would be capable of infecting someone," he told public broadcaster ABC.

He added that if a person was "careless with these materials and touched them and then licked your hands or touched your eyes or your nose, you might well get infected upwards of two weeks after they had been contaminated".

People 'far, far more infectious'

Drew said there were several caveats including that the study was conducted with fixed levels of virus that likely represented the peak of a typical infection, and there was an absence of exposure to ultraviolet light, which can rapidly degrade the virus.

Humidity was kept steady at 50 percent, the study said, as increases in humidity have also been found as detrimental to the virus.

According to the CSIRO, the virus appears to primarily spread through the air but more research was needed to provide further insights into the transmission of the virus via surfaces.

"While the precise role of surface transmission, the degree of surface contact and the amount of virus required for infection is yet to be determined, establishing how long this virus remains viable on surfaces is critical for developing risk mitigation strategies in high contact areas," CSIRO's Debbie Eagles said.

The main message remains that "infectious people are far, far more infectious than surfaces", Drew told the ABC.

"But nevertheless, it may help to explain why even when we got rid of the infectious people, we do occasionally get these breakouts again, sometimes even in a country which is considered to be free," he said.

(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)

Comments

Related news

Stronger Response Needed Against Virus, Canada PM Hopes To Avoid Shutdown.

Canadians need to do more to tackle a second wave of the coronavirus by slashing the number of personal contacts they have with others, health authorities said on Friday.

Philippines Orders 2,00,000 To Evacuate As Typhoon Goni Nears.

More than 200,000 people in the Philippines were ordered to evacuate their homes Saturday as the most powerful typhoon of the year so far barrels towards the country, with authorities warning of...

Death toll from Turkey-Greece earthquake now 26 as rescuers comb through rubble.

The earthquake, which the Istanbul-based Kandilli Institute said had a magnitude of 6.9, was centred in the Aegean northeast of Samos.

Kamala Harris: On The Cusp Of US Election History

Kamala Harris is on the verge of what would be a double-dream for US Democrats: becoming the nation's first woman vice president and ending Donald Trump's turbulent rule.

1 3

Health workers slam Trump’s ‘malicious’ claim doctors profiting from coronavirus deaths.

Trump has made the false claim that American doctors and hospitals make extra money by declaring deaths as related to COVID-19 twice in the past week.

Harvey Weinstein Sued By Woman He Was Convicted Of Sexually Assaulting.

Harvey Weinstein was sued on Friday by the former production assistant who the disgraced movie producer was convicted at trial of having sexually assaulted.

Biden, Obama to court Michigan’s Black voters in final weekend before U.

With the election down to the final days, Donald Trump's closing sprint includes four stops in Pennsylvania on Saturday and nearly a dozen events in the final 48 hours across states he carried in 2016.

Buildings Collapse, Streets Flooded: Videos Capture Horrific Turkey Quake.

22 people were killed and many injured Friday in Turkey when a powerful earthquake struck the country's western coast and parts of Greece.

Thousands evacuate as strongest typhoon of 2020 approaches Philippines.

Typhoon Goni, moving westward at 20 kph from the Pacific Ocean, will bring intense rains over the capital and 14 provinces nearby on Saturday evening, and threats of floods and landslides.

Police shooting of Black man near Portland raises tensions amid ongoing protests.

Friends and family identified the dead man as Kevin E. Peterson Jr., 21, and said he was a former high school football player and the proud father of an infant daughter.

By continuing to browse World News (UAZMI), you acknowledge that you have read the Terms of Use and agree to the use of cookies