Ayr school has been hit by Covid, it was confirmed tonight.A contact tracing operation is under way at Dalmilling Primary.Parents were informed this afternoon of pupils who may have come into contact with confirmed cases.They are now being asked to self-isolate at home for 10 days.It follows the news that 12 teachers have tested positive at Braehead Primary and Early Years Centre, also in the town.It has closed until March 22, along with nearby Heathfield Primary.The Ayrshire Live app is available to download now.Get all the local news in your area – plus features, football news and the latest on the coronavirus crisis – at your fingertips 24/7.The free download features the latest breaking news and exclusive stories while you can customise.