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Hum Vaccin Immunother. 2015;11(9):2281-6. doi: 10.1080/21645515.2015.1051276.

Meningococcal serogroup Y disease in Europe: Continuation of high importance in some European regions in 2013.

Author information

1
a Novartis Vaccines and Diagnostics GmbH ; Marburg , Germany.

Abstract

Neisseria meningitidis or meningococcus is divided into 12 distinct serogroups of which A, B, C, W, X, and Y are medically most important and cause health problems in different parts of the world. The epidemiology of N. meningitidis is unpredictable over time and across geographic regions. Globally, serogroup A has been prevalent in the African "meningitis belt" whereas serogroup B and C have predominated in Europe. In a paper published earlier in this journal (1) , an increase in serogroup Y invasive meningococcal disease (IMD) in some European countries was reported based on the epidemiological data for 2010, 2011 and 2012. Here, we report additional data from 30 European countries indicating that high or increased serogroup Y disease levels have continued in 2013 in certain regions of Europe. In the Western and Central Europe, there were no major changes in the proportion of serogroup Y IMD cases in 2013 compared to 2012. In the Scandinavian countries, proportion of serogroup Y disease remained high, ranging from 26% to 51% in 2013. This was in contrast to Baltic, Eastern and most Southern European countries, where the proportion of serogroup Y IMD was low similarly to previous years. For the last 2 decades, the mean age of patients affected by serogroup Y was 41 y for 7 countries from which data was available and 50% of cases were in patients aged 45 to 88 y. The age distribution of serogroup Y was bimodal and did not change significantly despite the increase of the total number and the proportion of serogroup Y IMD in some European regions.

KEYWORDS:

Europe; IMD, Invasive meningococcal disease; Men, meningococcal.; Neisseria meningitidis; epidemiology; invasive meningococcal disease; meningococcal serogroup Y

PMID:
26036710
PMCID:
PMC4635851
DOI:
10.1080/21645515.2015.1051276
[Indexed for MEDLINE]
Free PMC Article

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