Victorian health authorities are confident a Melbourne man picked up COVID-19 during his two weeks in South Australian hotel quarantine. The man in his 30s returned to his home in Wollert, in Melbourne’s north, on Tuesday last week and developed symptoms on Saturday. He has since returned a positive result after testing on Monday, with a re-test on Tuesday confirming his infection is active. The case has sparked a full public health response as the two states work to discover the source of infection. “This case is an important reminder that we are still in the grip of a global pandemic,” Victorian Health Minister Martin Foley told reporters. Victoria’s Chief Health Officer Brett Sutton thinks the man did not acquire his infection after returning to Victoria. “It’s absolutely the case that he’s picked it up in quarantine in South Australia,” he said. Contact tracers have now finished their initial interview …