Melbourne is now halfway through its stage 4 lockdown, and if the daily case numbers are anything to go by, the restrictions are clearly working.

At the start of the month, Victoria recorded more than 700 cases in a single day. Daily cases are now down to the low 200s.

But is three more weeks of hard lockdown enough to get the number to where it needs to be? And what else could be standing in the way of the city coming out of stage 4?

On today's show:

* Is three more weeks enough to get Melbourne's numbers down?

* What about by Christmas?

We have a few updates and clarifications regarding testing times and the story about which COVID-19 symptoms come first (on average).

If that's not enough, we also have a quick fire round on vaccines!

* How is an unvaccinated person a threat to a vaccinated person?

* How will the vaccine be distributed?

* Is there enough evidence to suggest that it is safe?

* Will it be safe for pregnant women?

* Who will be getting the vaccine first?