Never having closed the primary and middle schools, Sweden is now reopening high schools, colleges and universities for summer classes and the fall semester.https://www.regeringen.se/pressmeddelanden/2020/05/kravet-pa-distansundervisning-lattas-upp/ …
The general restriction on gatherings with more than 50 people is still in place. So, for large classes, universities must either split them up into smaller size lectures or conduct those classes online.