1.   The delays and shortages have forced states to ration vaccines, set new priorities and revise their immunization policies and requirements.

2.   The shortages have forced doctors to revise normal immunization schedules in order to ration vaccines.

3.   How do you ration scarce vaccine so only the at-risk get it, not the hysterical healthy or the pushy politicians?

4.   Some health departments are delaying their vaccine season, waiting until the shipments arrive before deciding whether to ration the vaccine.