Criteria for vaccine introduction: results of a DELPHI discussion among international immunisation experts on a stepwise decision-making procedure

Background: Based on a model of a stepwise approach for decision-making on vaccine introduction, this study aimed to reveal unpublished decision aids, to assess cut-off limits or thresholds for vaccine introduction that have already been used, and to discuss the comprehensiveness and feasibility of our suggested model. Methods: Forty international immunisation experts were invited to a DELPHI disc…