Looking at the demographics, school kids have been getting it and passing it on. Predominantly secondary school kids. They then infect their parents, who then infect someone else.
The issue is many many people don’t have symptoms. And then when you do, there is a lag between being contagious and then getting symptoms. So people are not as careful during that period. They see someone, don’t wear their mask, get too close, for too long. And so it goes.
I doubt it’s the supermarket, not unless you’re getting too close to people and someone isn’t wearing a mask. It is also not air vents, as they have proven although it travels through vents it isn’t live.
It’s in offices, homes, visiting family, public transport, talking to a friend or neighbour. It’s transmitted the way it was also transmitted.
If you look at the stats, in the initial strain it was a fifty fifty if you caught it, after spending a certain amount of time with someone. I think it was twenty mins. Now with the 56 percent more contagious, then you’ve only about a twenty percent chance you won’t catch it.
So it’s really people not having symptoms, not knowing they have it, either at all ever, or for the first three or four days, and passing it on, during that period.
Is it rule breaking, in thinking about it, yes for many that will be the case, for others it will be just not being carefu.
Kid comes home from school infected, no symptoms, passes it to parents, parents go to work, passes it to colleagues, because they don’t socially distance properly, aren’t careful with their masks, and they do it before anyone knows they have it, or goes to see granny, and think they are fine as they don’t feel ill. They develop symptoms two or three days after they are contagious, and in that period, they pass it on.