Interesting quote from Oxford's Prof James Naismith on masks – "The ONS survey results on prevalence shows that the Scottish and English approach to masking although formally different since July has made no meaningful difference to Delta."
— sarahknapton (@sarahknapton) November 29, 2021
Masks in the liberal mind: panacea, better than vaccination, prevents Covid 100%, they are like 30 feet of lead shielding.
Masks in reality: Help a bit in situations of long exposure and/or dense crowding with poor ventilation. Do have some positive benefit but vaccination is far better, and ventilation.