Instead, the 175 experts — mostly pediatricians focused on public health — largely agreed that it was safe enough for schools to be open to elementary students for full-time and in-person instruction now. Some said that was true even in communities where Covid-19 infections were widespread, as long as basic safety measures were taken. Most important, they said, were universal masking, physical distancing, adequate ventilation and avoidance of large group activities…

The risks of being out of school were far greater, many of the experts said. “The mental health crisis caused by school closing will be a worse pandemic than Covid,” said Dr. Uzma Hasan, division chief of pediatric infectious diseases at RWJBarnabas Health in New Jersey…

But the expert consensus in the survey is at odds with the position of certain policymakers, school administrators, parent groups and teachers’ unions. Some in these groups have indicated that they do not want to return to school buildings even next fall, when it’s likely that teachers will be able to be vaccinated, though not most students. Some districts have faced fierce resistance to reopening, particularly in large cities, where teachers have threatened to strike if they are called back to school buildings.