Information about the administration of a vaccine to a patient. This class is a sub-class of MedicationAdministrationPerformed, and therefore inherits the properties of that class, and then adds vaccination-specific information such as the dose number within a series, and immunity status. "Describes the event of a patient being administered a vaccination or a record of a vaccination as reported by a patient, a clinician or another party and may include vaccine reaction information and what vaccination protocol was followed." - HL7 FHIR, Immunization