Not every but very most. Wave after wave swept through the classrooms. As here we still had mandatory testing of all kids in class bi weekly we had a few kids who had it 3 times. Let alone the infections not detected after testing stopped.
They arenβt. Every child has not had COVID once, let alone multiple times. It is important to raise awareness around public health and keeping our kids safe from disease, but not by lying. And Iβm sick of people lying about the pervasiveness of COVID to obscure other issues.