Fourth day of no community transmission of coronavirus in NSW

How many days until we can say that community transmission is a thing of the past? 7? 14? 28?

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Coronavirus: Fourth day of no community transmission in NSWBy Olivana Lathouris • Associate Producer1:00pm Sep 29, 2020 Tweet Facebook Mail Two new cases of coronavirus have been reported in New South Wales in the last 24 hours, both returned travellers in hotel quarantine.For the fourth day in a …