Coronavirus case numbers have been building and yesterday in Victoria the highest daily number so far was recorded - 317 cases.

In New South Wales there are now 40 cases linked to the Crossroads Hotel outbreak in South Western Sydney, and another three cases from a different source which is yet to be identified.

So as the outbreak worsens, what role can masks play in preventing the spread of COVID-19 now and in the coming months?

Guests:

Professor Raina MacIntyre, Head of the Biosecurity Research Program at the Kirby Institute, UNSW Medicine

Beth Crothers, Masks for Aussies co-ordinator

HEAR experts' discussion on Life matters