Dr. Michael Osterholm is worried that some districts aren't properly prepared.
There are no counties in the distance learning for all students category.
MPS' 2020-21 school year begins Sept. 8.
The model of choice will change based on a 14-day infection rate in each county.
Without standing directly under a vent, 90% of aerosols from a teacher remain in the classroom, the study found.
More safety measures would make educators feel more comfortable with in-person instruction.
Families will have the option for distance learning no matter what the state decides.
A decision is supposed to be announced "by the week of July 27."