WHO is saying that
asymptomatic transmission appears to be rare. This gels with the notion that kids don't spread it easily or often, because kids are often asymptomatic. Evidence continues to mount that schools should open in the fall.
It makes sense that asymptomatic transmission (for a virus of this type) would be rare. Symptoms are really good at spreading virus, it's one of their mechanisms for survival (
extended phenotype). A virus that causes more symptoms gets spread faster, so the ones that cause symptoms win out and become prevalent.
The thing that strikes me here is that most of the
fear surrounding coronavirus, and there is a ton, is that anyone can have it and transmit it without even knowing it or showing any signs. And while that does appear to be possible, it also appears to be uncommon. So maybe some of the fear was misplaced here.
It's easy to over-react to this news too. Adults put too much trust in their own ability and the ability of others to notice symptoms early on and realize what it is. There is a lot of self-deception in the early phases of an illness. I know that's the case for me at any rate... "this is probably just allergies, I just have a headache, I just didn't get enough sleep".