Australia's extreme lockdown brought coronavirus cases in its epicenter to zero. It may also have prevented a third wave.

A woman stands in front of posters after measures to curb the spread of COVID-19 were eased in Melbourne, Australia, on October 28, 2020.
William West/AFP/Getty Images
Australia recorded zero new coronavirus cases in Victoria, the epicenter of its outbreak, on Monday and Tuesday.
Victoria imposed aggressive lockdown measures in July as cases began to climb. 
For 111 days, Melbourne residents were only allowed to leave home for essential purposes like exercising or grocery shopping. 
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