Ayr, which was closed yesterday, will remain shut until at least March 22.It has now emerged at least a dozen staff have been struck with the virus, along with a number of pupils.A source told Ayrshire Live: "It has spread through the school like wildfire."And only the younger year groups have been back in class during recent weeks."So the big concern moving forward is what would happen on Monday when everyone returns?"It just feels like we're going back to square one with pupils, staff and classes being asked to isolate left, right and centre."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.