Overrepresentation of influenza A(H1N1)pdm09 virus among severe influenza cases in the 2011/12 season in four European countries

J. Beauté*, E. Broberg, F. Plata, I. Bonmarin, J. O'Donnell, C. Delgado, Nicola Boddington, R. Snacken

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

In France, Ireland, Spain and the United Kingdom, the influenza season 2011/12 started in the final weeks of 2011 and has been dominated by influenza A(H3) viruses with minimal circulation of influenza A(H1N1) pdm09 and B viruses. A relatively greater proportion, however, of influenza A(H1N1)pdm09 viruses were reported in hospitalised laboratory-confirmed influenza cases in four countries. Compared to the season 2010/11, the proportion of subtype A(H3) among hospitalised cases has increased, associated with a larger proportion of cases in the youngest and oldest age groups.

Original languageEnglish
JournalEurosurveillance
Volume17
Issue number9
Publication statusPublished - 1 Mar 2012

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Copyright 2013 Elsevier B.V., All rights reserved.

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