novel coronavirus, a study found on Monday, suggesting schools may not play as big a role in spreading the virus as some had feared.Germany began reopening schools in May, though debate continues as to the role children may play in spreading the virus to vulnerable adults at home as well as to older teachers and school staff.The study by the University Hospital in Dresden analyzed blood samples from almost 1,500 children aged between 14 and 18 and 500 teachers from 13 schools in Dresden and the districts of Bautzen and Goerlitz in May and June.The largest study conducted in Germany on school children and teachers included testing in schools where there were coronavirus outbreaks.Of the almost 2,000 samples, only 12 had antibodies, said.