Residents of Perth and the Peel region were given a boost of hope yesterday, when no new cases of coronavirus were discovered.

The areas are in a lockdown until at least midnight tonight, after coronavirus escaped hotel quarantine late last week and has spread into the community.

WA Premier Mark McGowan says it's too early to predict what will happen with the lockdown after Monday

And it's also promoted another debate about who should run hotel quarantine: the states or the federal government.

Also on today's show:

* We get some better numbers from ATAGI on the chance of blood clots from the AstraZeneca vaccine, depending on how old you are.