A safe return to school this fall can be managed only at the local level and only if local disease transmission is low, said Mike Ryan, MD, who directs the World Health Organization's (WHO's) health emergencies program, in a live Q&A today with Maria Van Kerkhove, PhD, the WHO COVID-19 technical lead."Going back to school depends on the local epidemiology, the local transmission, the local profile of schools, the size of schools, the density of schools, the resources that schools have," he said, adding that this means that overcrowded schools with the fewest resources and most socioeconomically disadvantaged students will be at a disproportionately high risk for outbreaks.Ryan said that although many schools have wisely decided to implement