A Prestwick GP surgery has been forced to close after a number of positive coronavirus cases were directly linked to its practice.Kirkhall Surgery in the town's Alexandra Avenue will stay shut until Thursday.Telephone appointments will remain on offer during the temporary closure.A surgery spokesperson said: "Due to a number of positive cases of coronavirus directly linked to the practice, and on advice from NHS Ayrshire & Arran Public Health Team, Kirkhall Surgery has taken the decision to close to all patients temporarily until Thursday 26 March."The practice has asked NHS Ayrshire & Arran to step in to support them to continue to deliver primary care services during this time and we will work together to manage the situation and limit