Australia's most populous city of Sydney has experienced an uptick of community cases, over half of which are still under investigation, with health authorities scrambling to regain control, the media reported. In the 24 hours to 8 p.m. (local time) on Tuesday night, the state of New South Wales (NSW), the epicentre of Australia's current outbreak, recorded 110 new community cases, of which only 54 have been linked to a known case or cluster, Xinhua news agency reported. Worryingly, just 37 of these new cases were in isolation throughout the entirety of their infectious period. (IANS)
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