As a result, vaccination schedules vary between Member States on aspects such as timing, doses administered, type of healthcare workers involved in the delivery and vaccine purchasing practices.
Seetõttu erinevad vaktsineerimiskavad liikmesriigiti nii ajastuse, dooside, vaktsineerimiste tegemises osalevate tervishoiutöötajate kui ka vaktsiinide ostupõhimõtete poolest.