Though it may seem counterintuitive, large, formal settings are often safer than small, informal ones, because they typically require people to follow stringent rules to minimize risk, said Dr. Arwady.
At school, for instance, “even though the kids are in the classroom, their activities are very much prescribed,” said Dr. Ellen Wald, an infectious disease pediatrician at the University of Wisconsin School of Medicine and Public Health. They are typically required to wear masks and sit at desks spaced six feet apart.