Students line up for the entrance at the schoolyard of the Petri primary school in Dortmund, western Germany, on June 15, 2020 amid the novel coronavirus COVID-19 pandemic. - From June 15, 2020, all children of primary school age in the western federal state of North Rhine-Westphalia will once again be attending regular daily classes until the summer holidays. The distance rules and compulsory mouthguards are no longer applicable. (Photo by Ina FASSBENDER / AFP) (Photo by INA FASSBENDER/AFP via Getty Images)