Is the use of a mask useful in the prevention of COVID-19 disease? An evidence review study. (Special Issue: COVID-19.)

In this article, the relevant literature to inform multiple areas include transmission characteristics of COVID-19 disease, filtering characteristics and efficacy of masks and estimated population impacts of widespread community mask use were synthesized A review of the use of masks in this article showed that proper use of masks at the community level has a significant impact on reducing the rate of disease transmission among people in the community Non-medical masks use substances that prevent the release of droplets of the required size Non-medical masks are very effective in reducing the transmission of influenza The results show that non-medical masks are effective in small trials in blocking coronavirus transmission and in areas and periods when the use of masks was required and widely used;the transmission of the disease has decreased in the community People are usually infected in the early period after infection, which usually has few or no symptoms during this period It is also suggested that the general use of cloth masks is more effective than other health strategies, distance and patient diagnosis strategies in reducing the rate of disease transmission It is suggested that government officials and relevant organizations strongly encourage the use of masks by the public and crowded environments as a requirement to reduce disease transmission To reduce the transmission of respiratory viral disease, the following interventions should be preferred, preferably in combination: Frequent washing with or without side disinfectants - Create a retainer such as using gloves, clothing and a mask equipped with a filter, identify suspicious individuals by isolating possible cases However, it has been warned that long-term routine administration of some of the evaluated measures may be contagious without the threat of disease Health officials need to provide specific guidelines for the production, use and disinfection or reuse of facial masks and to review their distribution on a regular basis so that they do not become deficient According to the precautionary principle, the positive effect of wearing a public mask is "scientifically acceptable but unclear " While researchers may logically disagree about the degree of reduction and flexibility of the transfer rate, it seems that the relatively low benefits due to the exponential distribution of the transfer process can be collectively profitable Models show that wearing public masks is most effective in preventing the spread of the virus when acceptance is high This is the situation we see with vaccines Therefore, the use of masks should be done extensively with confidence based on this principle in society All countries suggest that masking is a low-risk but highly potentially positive action, so that many countries with a high prevalence of the disease have been able to reduce mortality with the widespread use of masks It is recommended that governments apply the requirements for the use of masks, and that organizations that provide public services, such as public transport providers or stores, apply the rules: Without masks, no services are provided