One of the big unknowns with coronavirus is why some people are left with symptoms from the illness long after they test negative.

It's known as long COVID, and studies overseas suggest it affects more than half of people who get COVID to varying degrees of severity.

So now we're nearly two years into the coronavirus pandemic, have we learnt more about long-COVID and what type of symptoms seem to be most common?

And because Australia has been fortunate enough to get to high levels of vaccination before massive outbreaks, are we likely to avoid the worst of it?

Also on today's show:

* Is Norman at odds with Australia's chief medical officer on vaccines waning?

* Some of my friends in WA are hesitant to get the vaccine and anti-mandate. What do I do?