Borders have been thrown up around Victoria as other states try to limit importing coronavirus infections.

But it's been too late for the ACT and NSW, which yesterday had cases that were linked back to Victorian residents.

It has kickstarted a lesson about if we've been too complacent with personal social distancing and relaxing restrictions.

So is what's happening in Victoria the wake up call Australia needed?

On today's show:

* Is the rest of Australia ready for coronavirus?

* What lessons can we learn from what's happening in Victoria?

* Why has Victoria gone with a six week lockdown?

* What does Norman have against the ACT? He never mentions Canberra on Coronacast.

* What's the difference between droplets and aerosols? And why does it matter?