Schools in Ireland were closed soon after, on March 12; by then, health officials had identified a total of three infected students — one in primary school and two in secondary school — along with a teacher and two other adult instructors. None of the kids’ 924 fellow students caught the virus from them at school, nor did 101 school-based contacts of the three infected adults. Even outside of school, the six infected people didn’t spread the virus to any of the 1,001 children who were among their close contacts, according to a report in the journal Eurosurveillance.