How long can the new coronavirus survive in vitro?
A new study shows that the virus can survive on the surface of objects for 3 days.
As the global epidemic of new coronaviruses continues to intensify, cleaning supplies are disappearing from shelves, and people are worried about anyone or anything they come in contact with.
But how long can the new coronavirus stay on the surface? In short, we don't know. A new analysis found that the virus can survive 3 hours in the air, 4 hours on copper, 24 hours on cardboard, and 2 to 3 days on plastic and stainless steel.
Another study analyzed dozens of previously published papers on human coronaviruses (except new coronaviruses) to better understand how long they can survive in vitro.
They concluded that if this new coronavirus is associated with other human coronaviruses, such as it causes SARS "cousins", it can stay on the surface for up to 9 days, such as metal, glass or plastic (compared Below, the flu virus can only stay on the surface for 48 hours).
However, at temperatures above 86 degrees Fahrenheit (30 degrees Celsius), some of these viruses cannot remain active for long periods of time. It was also found that household disinfectants can effectively remove these coronaviruses.
For example, according to a study, a disinfectant containing 62-71% ethanol, 0.5% hydrogen peroxide, or 0.1% sodium hypochlorite (bleach) can effectively inactivate coronavirus in one minute. "We expect a similar effect on SARS-CoV-2," the researchers wrote. Although this new coronavirus is similar to SARS coronavirus, it is unclear whether it will perform the same.
According to a study, it is unclear how often hands are contaminated with coronavirus after touching patients or contaminated surfaces. The World Health Organization recommends washing hands with soapy water or using an alcohol-based hand rub.
According to the Centers for Disease Control and Prevention (CDC), a person may be infected with the virus by touching a contaminated surface or object, and then "touching his mouth, nose, or possibly eyes. But this is not the virus The main way. "According to the Associated Press, although the virus is still present in the air, this new study cannot determine whether people are infected by inhaling the virus from the air.
According to a prevention center, the virus is most likely to be transmitted from person to person through close contact and droplets when coughing or sneezing, because the droplets may fall on the mouths or noses of nearby people.