The number of coronavirus exposure sites across the state has ballooned to more than 270. Victorian Premier Daniel Andrews is widely expected to extend the state's five-day lockdown, which is due to end at midnight on Tuesday. READ MORE NSW is bracing for more than 100 new cases as Sydney enters another week of lockdown. Construction work across Sydney has been shut down for a fortnight, leaving hundreds of thousands of people out of work. Business and union groups have warned the restrictions will cost the economy more than $700 million a week, in addition to earlier forecasts. READ MORE But authorities argue the construction shutdown is needed to help stop the spread of coronavirus, given the high number of cases recorded among people infectious while in the community.