The recommendations to wear masks have continued for a long time due to the spread of the new Corona virus and its variants, and with the increase in the number of vaccinators and the decline in infections with the “Omicron” mutator, the strategies of some countries in dealing with the crisis have changed, and there has been a tendency to dispense with wearing masks, as happened in a number of American states.
And recently, Rochelle Walinsky, director of the Centers for Disease Control and Prevention (CDC) of the US Department of Health, said that the federal agency is constantly updating the guidelines for wearing masks, while assessing the risks of spreading infection at the same time.
NBC website The American newspaper published a report on the extent of the need for masks if a large number of people were not wearing them, and said that people can still benefit from them even if many others did not do so.
Dr. Lawrence Justin, professor of public health at Johns Hopkins University, believes that they provide better protection than not wearing them.
Sheryl Hilton, dean of New York University’s School of Global Public Health, says it did not provide much protection once morest omicron infection, regardless of vaccination status.
And Bill Hanage, an epidemiologist at Harvard University, says that the muzzle can provide protection from infection in places where people do not wear masks, provided they are worn correctly, and according to “CDC”, the correct way is to cover the nose and mouth up to the chin area.
as that mask quality Also important, a previous CDC study found that N95 or KN95 surgical masks provide better protection than cloth masks.
The N95 respirator “provides optimum protection no matter what people around you do,” says Rano Dillon, an epidemiological response specialist at Harvard Medical School, in an NBC report.
And Isaac Bogosh, an infectious disease doctor and assistant professor of medicine at the University of Toronto, notes that the virus can be transmitted for long distances in enclosed spaces, such as restaurants and bars, where people are usually without masks and in close proximity to each other.
The Mayo Clinic defines surgical masks as “loose, single-use masks intended to protect the wearer from contact with droplets and sprays that may contain germs, and the medical mask filters the air from large particles during inhalation.”
To improve the fit of the medical mask to the face, the “Mayo Clinic” says: “Keep the ear loop at the point where it is attached to the mask. Then fold the excess material and insert it under the edges.”