Didn’t that study only show their effectiveness towards the wearer, not to others around them? Please link me the information showing I’m wrong if possible as I’m not 100% sure!
The Danish study was the largest scale study that showed that masks don’t work for the wearer, the small effect was not statistically significant. It was not designed to show whether or not a COVID+ mask wearer transmits to others (ethically not ok either). So after that study, guidance started to change to reflect the small possibility it could work as source control, which I accepted as a possibility as you might cough or sneeze in a mask and prevent droplet transmission.
However, recently lots of articles about COVID now being transmitted via aerosols, so I don’t even think they are effective as source controls either (and are COVID+ people really going out and about with masks if they are sick enough to be coughing and sneezing everywhere?)
If it really is transmitted via aerosols, the loosely fitted surgical masks almost everyone wears are just useless. Maybe a tightly fitting N95 would be the only way to source control, which would be intolerable to wear all day for most people.
And the ones not ‘playing along’ yesterday included whole groups of teenagers and very young adults, not ones likely to have had the vaccine
It’s true, but they might never get the vaccine. If mask wearing is all about source control, then does it really matter if they are wearing a mask or not as long as they don’t cough or sneeze around you? (The aerosol is a little more worrisome, but then, masks wouldn’t work at all in that scenario)
I didn’t know that about Japan, so wearing them makes zero difference to any infection rates? Do you mean covid or before that? How do you know, do you have any studies about this?
I mean for the flu virus. They get slammed by seasonal flu like everyone else despite mask wearing. It is a cultural thing although a big caveat is that taking sick leave really isn’t done in Japan because of the culture of ‘gaman’ ( toughing things out) basically.