бесполезная маска
Who should be wearing a facemask?
The Health Protection Agency (HPA) recommends that healthcare workers wear a facemask if they come into close contact with a person with symptoms (within one metre), to reduce their risk of catching the virus from patients.
However, the HPA does not recommend that healthy people wear facemasks in their everyday life.
Why shouldn't the general public wear facemasks?
There is no evidence to suggest that this is a useful preventative measure.
The virus is spread by people touching infected surfaces, or by someone coughing or sneezing at very close range. So unless you are standing very close to someone with the virus, wearing a facemask will not make a difference.
There are concerns about the risks of not using facemasks correctly. They must be changed regularly as they don't work as well when dampened by a person’s breath. People may infect themselves if they touch the outside of their mask, or may infect others by not throwing away old masks safely.
Finally, wearing a facemask may encourage complacency. It is more important to keep your hands clean, stay at home if you feel unwell and cover your mouth when they cough or sneeze.
(с сайта NHS).
пс: я так понимаю, что маску в России-Украине носят для успокоения нервов.
