Zitat:
Zitat von
egonolsen
Ich denke, dass es bezüglich Masken ältere Studien geben muss, und glaube nicht, dass wir komplett unwissend in die Coronapandemie gegangen sind. Belegen kann ich es nicht, dafür müsste ich Studien wälzen. Aber ich kann es mir nur sehr schwer vorstellen, dass wir keine Kenntnis über die Wirkung bzw. Nichtwirkung von Masken auf Bevölkerungsebene vor Corona hatten.
Ganz interessant, ich habe mal schnell gegoogelt und 20 Jahre alte Ergebnisse zu SARS gefunden:
Zitat:
Masks have been shown to provide an increased protection rate of 2.4 for mycobacterium tuberculosis in comparison with no mask. As SARS CoV has been suggested to be spread by aerosol droplet and not to any significant degree by airborne transmission, masks will probably provide some increased protection to the general public. However, as noted by Syed, it is necessary that they be properly used and changed frequently. As this virus can survive for 72 hours or more on surfaces, it is transmitted through fomite contact and infection can occur by mucus membranes (for example, conjunctiva)5; thus, other personal hygiene practices (for example, hand washing) are of equal or greater importance.
For public health protection, use of masks can have some impact on preventing the spread of SARS CoV. However, this should be only one health practice that is encouraged by the public as others (for example, hand washing) are also of great importance.
Zitat:
The cultural assimilation of the mask seems have to run in parallel with a general acceptance of the importance of SARS in view of its public health, social, and economic impacts on the communities affected. This assimilation has anticipated and reflected the high degree of local, national, and international cooperation that has been required to control the global spread. The mask became a highly visible symbol of individual and collective determination to achieve control even though its value in community settings is questionable. The pace of change when a new infection emerges can be rapid and may outstrip attempts to achieve communication. The media are active participants in the efforts to achieve effective communication to the public on emerging issues and may have considerable influence on public opinion on actions that can be taken. In addition, we observed the power of peer pressure with people quickly responding to the spectacle of masked crowds by purchasing their own face masks, in the absence of clear information.
Despite the observed lack of guidance and consistency in the use of masks, the low levels of basic hygiene employed by users and therefore the limited value of mask wearing in preventing community spread, efforts to improve perception of public health risks can assist the management of major communicable disease incidents by empowering the general public and strengthening perceptions of personal control.14 Active and empowered involvement of the general public in implementing and cooperating with public health control measures supported by national and international authorities has clearly helped to bring SARS under control. Perhaps it is this perception of the importance of personal and collective responsibility by members of the public that the mask symbolises best and the public health contribution of this symbolism should be remembered for future emerging infections.