From a German study - will need to translate:
"There is no scientifically sound evidence from the specialist literature cited in the article by the RKI, and neither from the “ current ” studies mentioned there, that masks that are worn by the normal population in public spaces (shops, public transport), regardless of which type The nature of them, whether medical MNS or so-called community MNB, could reduce the transmission of pathogens in respiratory infections, such as influenza or COVID-19 in particular, in order to " sustainably reduce the rate of spread of COVID-19 in the population and reduce the number of new cases to achieve ”, as it says in the RKI article."
"Neither the RKI or the WHO nor the ECDC or CDC presented scientific data for a positive effect of masks in public (in the sense of a reduced "speed of spread of COVID-19 in the population" [ 1 ]) because such data were not available gives [ 1 ] [ 6 ] [ 7 ] [ 8 ] [ 9 ]. The update of the Cochrane review also does not support the use of masks in public spaces in any way [ 10 ]. This is confirmed by 2 further reviews of the relevant literature from April 2020 [ 11 ] [ 12]. The same applies to the study from Hong Kong carried out a few years ago [ 5 ]."
https://www.thieme-connect.com/produ...55/a-1174-6591