Lytchett Minster School near Poole (left), Sturminster Newton High School (right) and Cerne Abbas CE VC First School (centre) have all reported coronavirus cases. THREE more schools in Dorset have reported coronavirus cases this week before the Christmas break. Sturminster Newton High School, which has more than 600 students, confirmed in a letter to parents and carers that a “member of our school community has tested positive for Covid-19 . The affected person and any close contacts must self-isolate until Christmas Eve. Jason Davis, headteacher at the Bath Road school, wrote that while the news would “naturally create concern”, he reassured parents and students that there are “rigorous measures to protect students .