In an interview for 60 Minutes, CBS News chief medical correspondent Dr. Jon LaPook posed that question to Linsey Marr, a Virginia Tech University professor specializing in aerosol science.
“They are very helpful in reducing the chances that the person will get COVID because it’s reducing the amount of virus that you would inhale from the air around you,” Marr said about masks.
No mask is 100% effective. An N95, for example, is named as such because it is at least 95 percent efficient at blocking airborne particles when used properly. But even if a mask has an 80% efficiency, Marr said, it still offers meaningful protection.
“That greatly reduces the chance that I’m going to become infected,” Marr said.
Marr said research shows that high-quality masks can block particles that are the same size as those carrying the coronavirus. Masks work, Marr explained, as a filter, not as a sieve. Virus particles must weave around the layers of fibers, and as they do so, they may crash into those fibers and become trapped.
Marr likened it to running through a forest of trees. Walk slowly, and the surrounding is easy to navigate. But being forced through a forest at a high speed increases the likelihood of running into a tree.
“Masks, even cloth masks, do something,” she said.
Not that I expect most people to believe it at this point…
The worst part is, in the actual post, there is a 30 second video explaining that they do indeed recommend medical professionals and others in close contact with the infected wear masks. So it even specifically had that context, and somehow people got the message that masks don’t help from it.
But I’m willing to bet most people who thought it said masks weren’t effective never saw the actual source. Just had one snippet of one sentence read to them on fox News with the “hosts” filling in what they should think about that half sentence.
The post also only say “not recommended -for the general public- at this time” which is not at all saying they wouldn’t work. Just don’t hoard them away from the people that need them, at this time. So, literally not even a lie anywhere in there. Directly stating exactly the message everyone that actually read the post took away from it.