Victoria's latest COVID-19 outbreak may have started long before the first case was found. Here's what we know
ABCAuthorities are once again racing to track the source of mystery COVID-19 cases in Victoria, find their close contacts and stop them from moving about the community. "If that is the source of infection, then there's a lot of people who could have got infected between July 15 and when we first found the case in the first case of that cluster," Professor Baxter said. Mr Weimar said there were cases from the Hobsons Bay cluster who "look like they have an earlier acquisition period than the first two cases that we reported". Household visits appear to be behind some of the transmission On Saturday, Mr Andrews said there had been "a bit of visiting been going on across the board" by cases who have now tested positive. "The only option we have is these lockdowns to stop this Delta variant running wild throughout the community and having many thousands of people simply overrun our hospital system," Mr Andrews said.