Why South Australia's outbreak isn't going away anytime soon

The number of cases in Adelaide's coronavirus cluster has jumped again, and health authorities are warning it'll likely continue to grow. There are more than 4000 people currently in quarantine, and authorities say there are a handful of people that they are treating as highly likely to test positive in coming days. It's worth remembering that even if everything goes the right way, this outbreak is going to take weeks to resolve as all contacts are traced and tested. So on today's Coronacast, why the citizens of Adelaide can't let up or relax for at least the next fortnight or so. Also on today's show: * What does the results around the Moderna mRNA vaccine mean for fighting COVID? * Why are there still three remaining cases in Victoria especially since they've gone so long without a case?

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