Queenslanders could be facing their longest lockdown since the height of the Covid-19 pandemic, with the state’s most worrying cluster to date expected to get worse according to infectious disease experts.Schools will be forced to cancel senior exams as thousands of students are again sent home to learn due to the Delta outbreak which has wreaked havoc across south east Queensland schools.Small and medium Queensland businesses will have access to support payments with the state government to announce its first Covid-19 package for the sector since the introduction of lockdowns.Queensland scientists warn consumers vitamin and mineral supplements are not all they are cracked up to be and can bring false hope and disappointment.For updates and breaking news throughout the day take out a subscription at couriermail.com.au.