Millions of Queenslanders will endure 6 more days of lockdown as the state fights to contain the most serious COVID-19 threat it has faced in a year. The state recorded 13 new locally acquired cases of the highly infectious Delta strain on Monday, all linked to a cluster involving high-risk exposure sites including six schools and public transport routes. A total of 31 cases have been linked to the cluster so far, with Chief Health Officer Jeannette Young expecting many more in the coming days. Eleven local government areas in the state’s southeast were ordered into a three-day hard lockdown at 4 p.m. on Saturday amid an outbreak that has grown to 31 cases. Of those, nine local virus cases were reported on Sunday with authorities warning testing numbers of 11,000 tests were only 25 per cent of what’s needed to get a clear picture of the spread. More than …