Co-op Academy in Swinton has been worst affected after positive cases in Year 7 and Year 10 meant both year groups were sent home on Monday morning.While the school initially said siblings should also stay off, parents have now been told that brothers and sisters can attend.Only if the children who are self-isolating begin to suffer symptoms should other members of their household face the same restrictions.But even if parents don't need to isolate, it's a blow for those with little ones who were relying on schools being back to be able to go to work.And it's left many fearing that children will be in and out of school as more cases are identified.The parent of a child at Co-op Academy Swinton shared her dismay over the situation and.