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Surveillance and outbreak report Open Access
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Abstract

The 2014/15 influenza season in the United Kingdom (UK) was characterised by circulation of predominantly antigenically and genetically drifted influenza A(H3N2) and B viruses. A universal paediatric influenza vaccination programme using a quadrivalent live attenuated influenza vaccine (LAIV) has recently been introduced in the UK. This study aims to measure the end-of-season influenza vaccine effectiveness (VE), including for LAIV, using the test negative case–control design. The overall adjusted VE against all influenza was 34.3% (95% confidence interval (CI) 17.8 to 47.5); for A(H3N2) 29.3% (95% CI: 8.6 to 45.3) and for B 46.3% (95% CI: 13.9 to 66.5). For those aged under 18 years, influenza A(H3N2) LAIV VE was 35% (95% CI: −29.9 to 67.5), whereas for influenza B the LAIV VE was 100% (95% CI:17.0 to 100.0). Although the VE against influenza A(H3N2) infection was low, there was still evidence of significant protection, together with moderate, significant protection against drifted circulating influenza B viruses. LAIV provided non-significant positive protection against influenza A, with significant protection against B. Further work to assess the population impact of the vaccine programme across the UK is underway.

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/content/10.2807/1560-7917.ES.2015.20.36.30013
2015-09-10
2024-11-21
http://instance.metastore.ingenta.com/content/10.2807/1560-7917.ES.2015.20.36.30013
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References

  1. Department of Health. Public Health England (PHE). The national flu immunisation programme 2014/15. London: PHE. 28 Apr 2014. Available from: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/316007/FluImmunisationLetter2014_accessible.pdf
  2. World Health Organization (WHO). Recommended composition of influenza virus vaccines for use in the 2014-2015 northern hemisphere influenza season. Geneva: WHO. 20 Feb 2014. Available from: http://www.who.int/influenza/vaccines/virus/recommendations/2014_15_north/en/
  3. Public Health England (PHE). Surveillance of influenza and other respiratory viruses in the United Kingdom: winter 2014 to 2015. Available from: https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/429617/Annualreport_March2015_ver4.pdf
  4. Broberg E, Snacken R, Adlhoch C, Beauté J, Galinska M, Pereyaslov D, et al. Start of the 2014/15 influenza season in Europe: drifted influenza A(H3N2) viruses circulate as dominant subtype. Euro Surveill. 2015;20(4):21023.  https://doi.org/10.2807/1560-7917.ES2015.20.4.21023  PMID: 25655052 
  5. Pebody RG, Warburton F, Ellis J, Andrews N, Thompson C, von Wissmann B, et al. Low effectiveness of seasonal influenza vaccine in preventing laboratory-confirmed influenza in primary care in the United Kingdom: 2014/15 mid-season results. Euro Surveill. 2015;20(5):21025.  https://doi.org/10.2807/1560-7917.ES2015.20.5.21025  PMID: 25677050 
  6. Andrews N, McMenamin J, Durnall H, Ellis J, Lackenby A, Robertson C, et al. Effectiveness of trivalent seasonal influenza vaccine in preventing laboratory-confirmed influenza in primary care in the United Kingdom: 2012/13 end of season results. Euro Surveill. 2014;19(27):20851.  https://doi.org/10.2807/1560-7917.ES2014.19.27.20851  PMID: 25033051 
  7. Curran MD, Ellis JS, Wreghitt TG, Zambon MC. Establishment of a UK National Influenza H5 Laboratory Network. J Med Microbiol. 2007;56(10):1263-7.  https://doi.org/10.1099/jmm.0.47336-0  PMID: 17893159 
  8. Ellis J, Iturriza M, Allen R, Bermingham A, Brown K, Gray J, et al. Evaluation of four real-time PCR assays for detection of influenza A(H1N1)v viruses. Euro Surveill. 2009;14(22):19230. PMID: 19497254 
  9. Gunson R, Maclean A, Davies E, Bennett S, Miller R, Carman WF. Development of a multiplex real-time RT-PCR that allows universal detection of influenza A viruses and simultaneous typing of influenza A/H1N1/2009 virus. J Virol Methods. 2010;163(2):258-61.  https://doi.org/10.1016/j.jviromet.2009.10.006  PMID: 19854220 
  10. Galiano M, Agapow P-M, Thompson C, Platt S, Underwood A, Ellis J, et al. Evolutionary pathways of the pandemic influenza A (H1N1) 2009 in the UK. PLoS ONE. 2011;6(8):e23779.  https://doi.org/10.1371/journal.pone.0023779  PMID: 21887318 
  11. Matrosovich M, Matrosovich T, Carr J, Roberts NA, Klenk HD. Overexpression of the alpha-2,6-sialyltransferase in MDCK cells increases influenza virus sensitivity to neuraminidase inhibitors. J Virol. 2003;77(15):8418-25.  https://doi.org/10.1128/JVI.77.15.8418-8425.2003  PMID: 12857911 
  12. Zambon M. Laboratory Diagnosis of Influenza. In: Nicholson K, Hay A, Webster RG, editors. Textbook of Influenza. Oxford: Blackwell Science; 1998. pp. 291-313].</edb>
  13. Zhou B, Donnelly ME, Scholes DT, St George K, Hatta M, Kawaoka Y, et al. Single-reaction genomic amplification accelerates sequencing and vaccine production for classical and Swine origin human influenza A viruses. J Virol. 2009;83(19):10309-13.  https://doi.org/10.1128/JVI.01109-09  PMID: 19605485 
  14. Flannery B, Clippard J, Zimmerman RK, Nowalk MP, Jackson ML, Jackson LA, et al. Centers for Disease Control and Prevention. Early estimates of seasonal influenza vaccine effectiveness - United States, January 2015. MMWR Morb Mortal Wkly Rep. 2015;64(1):10-5. PMID: 25590680 
  15. Skowronski DM, Chambers C, Sabaiduc S, De Serres G, Dickinson JA, Winter AL, et al. Interim estimates of 2014/15 vaccine effectiveness against influenza A(H3N2) from Canada’s Sentinel Physician Surveillance Network, January 2015. Euro Surveill. 2015;20(4):21022.  https://doi.org/10.2807/1560-7917.ES2015.20.4.21022  PMID: 25655053 
  16. Hardelid P, Fleming DM, Andrews N, Barley M, Durnall H, Mangtani P, et al. Effectiveness of trivalent and pandemic influenza vaccines in England and Wales 2008-2010: results from a cohort study in general practice. Vaccine. 2012;30(7):1371-8.  https://doi.org/10.1016/j.vaccine.2011.12.038  PMID: 22178524 
  17. World Health Organization (WHO). Recommended composition of influenza virus vaccines for use in the 2015-2016 northern hemisphere influenza season. Geneva: WHO. 26 Feb 2015. Available from: http://www.who.int/influenza/vaccines/virus/recommendations/2015_16_north/en/
  18. Centers for Disease Control and Prevention (CDC). Advisory Committee on Immunisation Practice (ACIP). Update on Live Attenuated Influenza Vaccine (LAIV). Atlanta: CDC. 25 Feb 2015. Available from: http://www.cdc.gov/vaccines/acip/meetings/downloads/slides-2015-02/flu-02-Coelingh.pdf
  19. Nichol KL, Mendelman PM, Mallon KP, Jackson LA, Gorse GJ, Belshe RB, et al. Effectiveness of live, attenuated intranasal influenza virus vaccine in healthy, working adults: a randomized controlled trial. JAMA. 1999;282(2):137-44.  https://doi.org/10.1001/jama.282.2.137  PMID: 10411194 
  20. Glezen WP, Gaglani MJ, Kozinetz CA, Piedra PA. Direct and indirect effectiveness of influenza vaccination delivered to children at school preceding an epidemic caused by 3 new influenza virus variants. J Infect Dis. 2010;202(11):1626-33.  https://doi.org/10.1086/657089  PMID: 21028955 
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