The Joint Committee on Vaccination and Immunisation (JCVI), a group of independent experts that provided advice to United Kingdom health departments on immunisation, considers published and unpublished studies routinely to help ensure that as much relevant information is considered as possible when developing advice. As the JCVI is committed to releasing draft minutes within six weeks of committee meetings, its assessments of the findings of studies are often published prior to the publication of those studies in the peer-reviewed scientific literature. The JCVI interim position statement on the use of Bexsero® meningococcal vaccine in the UK was informed by discussions at the June 2013 JCVI meeting about a yet to be published study on the impact and cost-effectiveness of immunisation strategies using this vaccine. The draft minutes of the meeting which describes the committee’s assessment of the findings of the study was published six weeks after that JCVI meeting. The interim position statement which also describes the assessment was published at the same time.