It seems New Zealanders are better at masking up compared with our Australian counterparts.
University of Melbourne Epidemiology Professor Tony Blakely has been visiting New Zealand, and says mask wearing is much more common here.
He's co-authored an article with New Zealand epidemiologist Professor Michael Baker, arguing there's a real risk the current settings won't be enough to prevent both countries' health services being overwhelmed by the latest Covid-19 surge.
Professor Blakely spoke to Kim Hill.
