The areas of Wales where hundreds of pupils are self-isolating after coronavirus cases confirmed in schools Confirmed cases of Covid-19 have led to more than 400 pupils being put into isolation across Wales' schools Sign up to FREE email alerts from Wales Online - Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice Covid cases in schools across Wales have fallen again but hundreds of pupils are self isolating, including some in key GCSE year 11.