The US Centers for Disease Control and Prevention (CDC) has updated its surface cleaning guidelines and pointed out that the risk of contracting the virus from contact with contaminated surfaces is less than one in 10,000
new York- When the coronavirus began to spread in the United States last spring, many experts warned of possible dangers on the surface. Researchers report that the virus can survive in plastic or stainless steel for several days. The Centers for Disease Control and Prevention warns that if someone touches one of these contaminated surfaces and then touches their eyes, nose or mouth, they may be infected. infection.
The Americans responded in kind, clearing groceries, quarantining mail, and clearing Clorox wipes on drugstore shelves. Facebook closed two offices for “deep cleaning.” The New York Metropolitan Transportation Authority began disinfecting subway cars every night.
However, when the CDC updated its surface cleaning guidelines this week, the era of “sanitary zones” may have come to an unofficial end, noting that the risk of contracting the virus from contact with contaminated surfaces is less than one in ten thousand.
CDC Director Dr. Rochelle Walensky said at a briefing held at the White House on Monday: “People may be infected by the virus that causes Covid-19 through contact with contaminated surfaces and objects.” “However, the evidence shows that through this infection The risk of transmission through channels is indeed very low.”
Scientists say that the admission time is long overdue.
Linsey Marr, an airborne virus expert at Virginia Tech, said: “Finally, we have known for a long time, but people are still very concerned about cleaning surfaces.” She added: “In fact, there is no evidence that someone has touched a contaminated surface. And infected with Covid-19.”
At the beginning of the pandemic, many experts believed that the virus was mainly spread through large respiratory droplets. These droplets are too heavy to travel long distances in the air, but will fall on objects and surfaces.
In this case, it seems to make sense to focus on cleaning all surfaces. “Surface cleaning is more familiar,” Marr said. “We know what to do. You can see people doing it, you can see clean surfaces. So I think it makes people feel safer.”
But in the past year, it has become increasingly clear that the virus is mainly spread through the air and spread in small and small droplets. They can stay in the air for longer periods of time and clean door handles and subway seats. It does little to ensure people’s safety.