4 new cases of Covid-19 in Melbourne-Should NZ suspend travel?

Four new cases of Covid-19 have been identified in Melbourne's northern suburbs, and the source remains unclear. The first case was a man who showed symptoms of the coronavirus on the 20th of May. and was tested on May the 23rd. The other three positive cases are his close contacts. The question for New Zealand now is whether this merits suspending travel to Melbourne. Producer Matthew Theunissen spoke with epidemiologist Professor Tony Blakely, from the University of Melbourne, about how concerning the outbreak is.