Disclosures Markus A. Rose has received research funding and speaker's fees from Wyeth/Pfizer, Germany.
The burden of invasive pneumococcal disease in children with underlying risk factors in North America and Europe
Version of Record online: 19 JUL 2013
© 2013 The Authors. International Journal of Clinical Practice published by John Wiley & Sons Ltd.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
International Journal of Clinical Practice
Volume 68, Issue 1, pages 8–19, January 2014
How to Cite
Rose, M. A., Christopoulou, D., Myint, T. T. H. and de Schutter, I. (2014), The burden of invasive pneumococcal disease in children with underlying risk factors in North America and Europe. International Journal of Clinical Practice, 68: 8–19. doi: 10.1111/ijcp.12234
Dina Christopoulou is an employee of Pfizer Ltd, UK.
Tin Tin Htar Myint is an employee of Pfizer Pharmaceuticals, France.
Iris de Schutter has been an invited speaker for Pfizer and has participated in advisory boards for GlaxoSmithKline Biologicals and Pfizer in the past 3 years.
Linked Comment: Stein. Int J Clin Pract 2014; 68: 2–3.
- Issue online: 17 DEC 2013
- Version of Record online: 19 JUL 2013
- Manuscript Accepted: 19 JUN 2013
- Manuscript Received: 1 MAR 2013
Characterisation of risk groups who may benefit from pneumococcal vaccination is essential for the generation of recommendations and policy.
We reviewed the literature to provide information on the incidence and risk of invasive pneumococcal disease (IPD) in at-risk children in Europe and North America. The PubMed database was searched using predefined search terms and inclusion/exclusion criteria for papers reporting European or North American data on the incidence or risk of IPD in children with underlying medical conditions.
Eighteen references were identified, 11 from North America and 7 from Europe, with heterogeneous study methods, periods and populations. The highest incidence was seen in US children positive for human immunodeficiency virus infection, peaking at 4167 per 100,000 patient-years in 2000. Studies investigating changes in incidence over time reported decreases in the incidence of IPD between the late 1990s and early 2000s. The highest risk of IPD was observed in children with haematological cancers or immunosuppression. Overall, data on IPD in at-risk children were limited, lacking incidence data for a wide range of predisposing conditions. There was, however, a clear decrease in the incidence of IPD in at-risk children after the introduction of 7-valent pneumococcal conjugate vaccine into immunisation programmes, as previously demonstrated in the general population.
Despite the heterogeneity of the studies identified, the available data show a substantial incidence of IPD in at-risk children, particularly those who are immunocompromised. Further research is needed to determine the true risk of IPD in at-risk children, particularly in the post-PCV period, and to understand the benefits of vaccination and optimal vaccination schedules.