On May 19, 2020, the CDC released considerations for schools to supplement any state or local regulations with which schools must comply.  In general, the more humans interact, and the longer the interaction, the higher the risk of COVID-19 spread.  While the lowest risk is students and teachers participating in virtual-only classes, activities, and events, there are precautions schools may follow to help minimize risk to the school community.  Those precautions include personal prevention practices like handwashing, developing new policies, modifying school layouts, and preparing for when someone becomes ill.