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

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URI: http://hdl.handle.net/20.500.12105/7723
ISSN: 1025-496X
DOI: 10.2807/1560-7917.ES.2017.22.7.30465

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2017-02

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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.

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Case control study Influenza Influenza vaccine Influenza-like illness Repeated vaccination Vaccine effectiveness

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Adolescent Adult Aged Child Humans Influenza A Virus, H3N2 Subtype Influenza Vaccines Vaccination Young Adult

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Bibliographic citation

Euro Surveill. 2017 Feb;22(7).

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Centro Nacional de Microbiología (CNM)
IdiSNA - Instituto de Investigación Sanitaria de Navarra (Navarra)

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https://doi.org/10.2807/1560-7917.ES.2017.22.7.30465

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journal article