Victoria posted a new national record for new COVID cases day yesterday, with 1763 cases.

There have been a number of worrying big days recently, and there are few signs that the outbreak is slowing down in any meaningful way.

So what could be going on, especially considering vaccination levels in Victoria are now higher than they were in NSW when that state hit its peak several weeks ago.

That's on today's Coronacast.

Also on today's show:

* Kids and schools and ventilation

* I know this could change any second, but how have we managed to dodge so many bullets in Queensland?

* Can you tell me what the difference is between a 12 year old and a 10 year old getting vaccinated?

* Tegan starts a drug name etymology club. Who wants in?!