Single cases per class make up the majority of infections, namely 519 in total. They are thought to have been infected without transmitting the virus further in the classroom.
91 cases were reported in scenario 2, where there is a maximum of two cases per class and there remains uncertainty about the source of infection.
Overall there were no new infection chains, but 30 cases in which 3-5 people tested positive within a classroom.
There were no classes with more than five cases.
