Abstract
In 2015/16, the influenza season in the United Kingdom was dominated by influenza A(H1N1)pdm09 circulation. Virus characterisation indicated the emergence of genetic clusters, with the majority antigenically similar to the current influenza A(H1N1)pdm09 vaccine strain. Mid-season vaccine effectiveness (VE) estimates show an adjusted VE of 41.5% (95% confidence interval (CI): 3.0–64.7) against influenza-confirmed primary care consultations and of 49.1% (95% CI: 9.3–71.5) against influenza A(H1N1)pdm09. These estimates show levels of protection similar to the 2010/11 season, when this strain was first used in the seasonal vaccine.
Original language | English |
---|---|
Journal | Eurosurveillance |
Volume | 21 |
Issue number | 13 |
DOIs | |
Publication status | Published - 31 Mar 2016 |
Bibliographical note
Publisher Copyright:© 2016, European Centre for Disease Prevention and Control (ECDC). All Rights Reserved.