Doge Market Cap?

In an unrelated question, how can the University I attend “require” me to be vaxed in order to attend classes?
im an older student that returned to college to fulfill a life long dream of completing my degree. we are on a quarter system and go year round. all classes have been online up until now. there is no way i am getting vaxed or sitting in a 4 hour class with a mask. i graduate Nov21 so its little late to change from NU to another university.
i also noticed other colleges in Chicago are requiring the same for Fall21

How is it constitutional to force vaccine and deny right to education ?