File photo: Children wearing facemasks during a lesson at Outwood Academy in Woodlands, Doncaster in Yorkshire. Mask-wearing for pupils could return to schools under contingency plans to keep coronavirus at bay in the classroom over winter. Issue date: Thursday October 7, 2021. PA
File photo: Children wearing facemasks during a lesson at Outwood Academy in Woodlands, Doncaster in Yorkshire. Mask-wearing for pupils could return to schools under contingency plans to keep coronaviShow more

Masks return to English secondary schools in bid to curb Omicron spread