In that report (see reference 6) for example taxi drivers had 4 times the increased risk of exposure compared to teachers of primary school.
Actually this is exactly the big question right now -- ignoring "cases", are children as infectious as adults?
We don't know, signs point to "not as infectious, but probably nonzero".
Of course, and so has every parent -- what, exactly, are you implying, that the people studying this haven't had this experience? And are therefore not considering that kids can have mild symptoms but still be contagious?
If so, that's an awful lot of ignorance that you are ascribing to everyone studying this with an opinion that doesn't match your lived experience with other viruses.
If not, please enlighten me.
> It's highly likely this is the same, and the burden of proof is on those who want to say this coronavirus is the exception.
Yes. You are literally commenting in a thread about a paper that is trying to provide evidence ("burden of proof") by looking at differential rates of illness, and not simply drawing inferences from general facts about viruses -- which is what you are doing here.
And we know that, while presymptomatic spread is an issue, asymptomatic spread is between rare and nonexistent.
The fact that children tend not to be diagnosed because they tend much more strongly than adults to be asymptomatic when infected is not irrelevant to their propensity to spread the disease.
Our knowledge is not that precise yet.
What we do know, based on models, is that "silent" transmission accounts for about 50% of covid-19 infections.
https://abcnews.go.com/Health/asymptomatic-presymptomatic-pe...
But the ol' maxim applies here: absence of evidence is not evidence of absence
That applies to infection/transmission via schools in general. Precisely because we don't have decent testing and tracing, we have a large number of cases whose origin is unknown. Schools have to be considered as one possibility, especially considering the several cases where reopening schools has been strongly correlated with spikes in infections. The precise mechanism doesn't matter. It's a red herring. Whether it's kid to kid, parent to teacher, cafeteria workers, whatever, it seems to happen some of the time. Until we've clearly ruled out a cause for those unknowns, we have to consider it still operative.
"Our results indicate that silent disease transmission during the presymptomatic and asymptomatic stages are responsible for more than 50% of the overall attack rate in COVID-19 outbreaks."
INFECTIONS, however, matter a LOT. If you're infected you can pass a virus on without ever being counted as a "case." And we have zero reason to think children can't be infected. Hell, tigers and mink can be infected. Of course children can be infected. This thing is crazy infectious.
Children will spread the infection to their teachers, school staff, and families. There is no question about that, regardless of whether children's infections count as "cases."