Coronavirus can survive 28 days on phone screens, currency, study reveals
Oct 14 2020
Experiments done at 20, 30 and 40 degrees C showed the virus survived longer at cooler temperatures, longer on smooth surfaces than on complex surfaces such as cotton, and longer on paper banknotes than on plastic banknotes.
"It also strongly suggests that individuals who have tested positive for Sars-CoV-2 should continue to take serious precautions when it comes to the virus, including social distancing, wearing face masks, and handwashing".
Larry Marshall, the chief executive of the CSIRO, said that the research was built on the agency's previous Covid-19 work including vaccine testing and wastewater testing. FRANCE 24's Catherine Norris Trent, Ludovic de Foucaud and Hussein Asad report.
Most of the newborns roomed with their mothers, including during the first postpartum checkup, while some were admitted to the intensive care unit for non-Covid-related health reasons, the study noted. The Republican leader will hold a rally in Florida, followed by Pennsylvania and Iowa, states all crucial to clinching a victory on November 3. "Because we don't know", he told a briefing. A Chinese doctor, Wang Zhou MD, expressed a similar view in March, writing that viruses can survive "for several hours on smooth surfaces" and "if the temperature and humidity permit, they can survive for several days".
Although it is said that coronavirus is mostly transmitted when people cough, sneeze or talk but there is also evidence that it can also be spread by particles hanging in the air.
But Dr. Thomas Unnasch, also with USF Health, says this study was done with flawless conditions for a virus to thrive. The aim of the study was to find out the presence of the virus on the surfaces of objects we come in contact with on a regular basis.
Former director of Cardiff University Prof. CDC has said that a lot is still unknown about the virus and while it can survive for a short period on some surfaces, it is unlikely to be spread from domestic or global mail, products or packaging. So whilst such survival may be possible to demonstrate in the lab, in real-life everyday situations, such long survival periods may not be realistic. "It's from being close to someone spewing virus from their nose and mouth, without in most cases knowing they are doing so".
The PHI reform is in line with a 2019 national scientific review conducted by the South Australian Research and Development Institute, which identified areas for improvement without impacting food safety outcomes.
The new coronavirus may remain infectious for weeks on banknotes, glass and other common surfaces, according to research by Australia's top biosecurity laboratory that highlights risks from paper currency, touchscreen devices and grab handles and rails. They said another plausible explanation could be the mechanism of antibody dependent enhancement in which some protective proteins produced by the immune system during the first encounter with the virus could make a subsequent infection worse.
Researchers said given that proteins and fats in body fluids can also sharply increase virus survival times, their study may help explain the apparent persistence and spread of the virus in cool environments like meat-packing facilities.