Combined effectiveness of prior and current season influenza vaccination in northern Spain: 2016/17 mid-season analysis

Primary Health Care Sentinel Network, Network for Influenza Surveillance in Hospitals of Navarre

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

The 2016/17 mid-season vaccine effectiveness estimate against influenza A(H3N2) was 15% (95% confidence interval: −11 to 35) in Navarre. Comparing to individuals unvaccinated in the current and four prior seasons, effectiveness was 24% for current and 3-4 prior doses, 61% for current and 1-2 prior doses, 42% for only current vaccination, and 58% for 3-4 prior doses. This suggests moderate effectiveness for different combinations of vaccination in the current and prior seasons.

Original languageEnglish
JournalEurosurveillance
Volume22
Issue number7
DOIs
Publication statusPublished - 16 Feb 2017

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