Masked

The use of the mask to deal with the coronavirus epidemic is a highly controversial topic. There are specialists who recommend it at all times, and others, who consider it necessary only in certain circumstances. This controversy arises basically because there are many uncertainties regarding the direct transmission of the virus. It is not known to what extent air transmission is important, the degree of protection provided by the mask (in no case is it total), what concentration of virus must be inhaled to contract the infection, how much time remains viable in the air, or how far it can travel. There is, however, unanimity in the use of the mask by medical personnel, by people who show symptoms of being sick, and by people in quarantine (who have been in contact with sick people), whether asymptomatic or presymptomatic. The usefulness of the mask is basically to prevent the exit of virus-loaded saliva particles when we talk, cough or sneeze. Therefore, it is a measure to protect others in case we are infected. Since we do not really know if we are infected or not, many doctors consider that it should always be worn as a precaution. Others argue that the massive use of masks by the population reduces their availability to medical personnel, who are most in need of them. While different research centers around the world seek to clarify the uncertainties of direct transmission, we are clear about how indirect transmission works: through contaminated hands when we touch a mucosa. Therefore, we have the solution to the middle of the problem and that is by washing our hands well with soap and water.