New South Wales recorded 18 new locally transmitted Covid cases Monday Gladys Berejiklian said the numbers will 'bounce around' and go up considerably Queensland recorded three new locally transmitted cases on Monday Masks will be mandatory indoors and outdoors in QLD 11 local government areas There are fears the outbreak could carry on growing with thousands exposed Restrictions now in place in the Northern Territory, WA, Queensland and NSW Other states have shut their borders to keep the virus out as clusters grow