FOUR more Dorset schools have confirmed Covid cases. The Gryphon School in Sherborne, Lytchett Minster School, Piddle Valley Church of England First School in Piddletrenthide, and The Sir John Colfox Academy in Bridport have all confirmed at least one case of Covid-19. They join a growing list of schools that have had cases of coronavirus, including Symondsbury Primary School in Bridport, where 47 students and three staff members, including the headteacher, are isolating. Adam Shelley, headteacher of The Sir John Colfox Academy, said: "We just have three students who are isolating. We have kept all of our safety measures in place, including school bubbles and mandatory mask wearing which has been good as it has stopped us having any outbreaks.