And saying the Pfizer (which is the one that will be given at ND if that is where a student chooses to get vaccinated) or Moderna are "not vaccines" is simply not true. Besides there are places where the more traditional J&J vaccine can be obtained.
Requiring vaccines at ND isn't new:
The University currently requires enrolled students to be immunized for hepatitis B, meningitis, measles, mumps, rubella, tetanus, and chickenpox, and last fall required all students to receive the flu vaccine, again with medical and religious exemptions.