1. Assessing Optimal Target Populations for Influenza Vaccination Programmes: An Evidence Synthesis and Modelling Study
2. Public Health England (2015) The flu vaccination winter 2015/2016 Who should have it and why, https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/451734/9407_PHE_General_Flu_A5_booklet_06b_web.pdf (accessed 9 Aug 2016).
3. World Health Organization (2012) Vaccines against influenza WHO position paper, http://www.who.int/immunization/position_papers/PP_influenza_november2012_summary.pdf (accessed 9 Aug 2016).
4. European Medicines Agency (EMA) Pharmacovigilance Risk Assessment Committee (PRAC) (2014) Interim guidance on enhanced safety surveillance for seasonal influenza vaccines in the EU, http://www.ema.europa.eu/docs/en_GB/document_library/Scientific_guideline/2014/04/WC500165492.pdf (accessed 9 Aug 2016).
5. Uptake and impact of vaccinating school age children against influenza during a season with circulation of drifted influenza A and B strains, England, 2014/15