Friday, October 23, 2020
Home Environment Covid19 Can Remain Infectious On Surfaces For Long Periods Of Time: Study

Covid19 Can Remain Infectious On Surfaces For Long Periods Of Time: Study

Covid19 can survive for up to 28 days on common surfaces including banknotes, glass such as that found on mobile phone screens, and stainless steel

The virus responsible for Covid19 can remain infectious on surfaces for long periods of time as researchers at Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia’s national science agency, have found that it can survive for up to 28 days on common surfaces including banknotes, glass such as that found on mobile phone screens, and stainless steel.

The research, undertaken at the Australian Centre for Disease Preparedness (ACDP) in Geelong, found that SARS-CoV-2 survived longer at lower temperatures and tended to survive longer on non-porous or smooth surfaces such as glass, stainless steel, and vinyl, compared to porous complex surfaces such as cotton.

The study, published in the Virology Journal, showed that the Covid19 virus survived longer on paper banknotes than plastic banknotes.

“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 Covid19 virus remains viable on surfaces is critical for developing risk mitigation strategies in high contact areas,” said one of the study authors Debbie Eagles, Deputy Director of ACDP.

“How long they can survive and remain infectious depends on the type of virus, quantity, the surface, environmental conditions and how it’s deposited – for example touch vs droplets emitted by coughing,” said Professor Trevor Drew, Director of ACDP.

Covid19 virus
According to the studies, Covid19 can last for a longer period of time on mobile phone screens. Pixabay

“Proteins and fats in body fluids can also significantly increase virus survival times.”

CSIRO Chief Executive Larry Marshall said surface survivability research builds on the national science agency’s other Covid-19 work, including vaccine testing, wastewater testing, Personal Protective Equipment (PPE) manufacture and accreditation, and big data dashboards supporting each state.

“Establishing how long the virus really remains viable on surfaces enables us to more accurately predict and mitigate its spread, and do a better job of protecting our people,” Marshall said.

“Together, we hope this suite of solutions from science will break down the barriers between us, and shift focus to dealing with specific virus hotspots so we can get the economy back on track.”

The research involved drying virus in an artificial mucus on different surfaces, at concentrations similar to those reported in samples from infected patients, and then re-isolating the virus over a month.

Covid19 virus
Reinforcement of good practices such as regular handwashing and cleaning surfaces is mandatory to defeat Covid19. Pixabay

Further experiments were carried out at 30 and 40 degrees Celsius, with survival times decreasing as the temperature increased.

The study was also carried out in the dark, to remove the effect of UV light as research has demonstrated direct sunlight can rapidly inactivate the virus.

“Our results show that SARS-CoV-2 can remain infectious on surfaces for long periods of time, reinforcing the need for good practices such as regular handwashing and cleaning surfaces,” Eagles said.

ALSO READ: Risk and Disease Severity to Be Considered During COVID Vaccine Distribution

“At 20 degrees Celsius, which is about room temperature, we found that the virus was extremely robust, surviving for 28 days on smooth surfaces such as glass found on mobile phone screens and plastic banknotes.

“For context, similar experiments for Influenza A have found that it survived on surfaces for 17 days, which highlights just how resilient SARS-CoV-2 is,” Eagles said. (IANS)

STAY CONNECTED

19,120FansLike
362FollowersFollow
1,781FollowersFollow

Most Popular

Down Syndrome May Increase COVID Death Risk

Researchers have found that down syndrome is associated with a 10-fold increased risk for COVID-19-related death. Down syndrome (sometimes called Down's syndrome) is a condition...

Miss India 2020 Pageant Held Virtually Due to Pandemic

In the wake of the COVID-19 pandemic, Miss India 2020 pageant will be held virtually the Miss India Organisation has announced. A nationwide audition to...

6 Designers Came Together to Help Craft Clusters Impacted by Pandemic

Six fashion designers came together to support marginalized craft clusters and those heavily impacted by the pandemic by generating livelihood opportunities for the artisans....

India Rapidly Expanding High Power Supercomputers

India is fast expanding its supercomputer facilities and developing the capacity to manufacture its own supercomputers in the country, the Ministry of Science and...

Cholesterol Medications May Lower Cancer-Related Deaths in Women

Among women with breast cancer, colorectal cancer, or melanoma, those who are taking cholesterol-lowering medications are less likely to die from cancer, researchers said. The...

Immediate Biomedical Waste Management Halts COVID Spread: UNIDO

The United Nations Industrial Development Organisation (UNIDO) on Tuesday stressed the need to halt the spread of COVID-19 through all possible infection channels, including...

1.16L Infant Deaths in 2019 Due to Air Pollution in India

The first-ever comprehensive analysis of air pollution's global impact on newborns finds that outdoor and household particulate matter pollution contributed to the deaths of...

Literature and Movies: Filmmaker Suman Mukhopadhyay

While reading 'Chuti Nakoch', a story by writer Ashapurna Devi, he suddenly felt grabbed by the jugular. It was tough to ignore the visual...

Recent Comments