First estimates of influenza vaccine effectiveness among severe influenza cases, France, 2011/12

I Bonmarin; E Belchior; Y Le Strat; D Levy-Bruhl

doi:10.2807/ese.17.18.20163-en

First estimates of influenza vaccine effectiveness among severe influenza cases, France, 2011/12

Euro Surveill. 2012 May 3;17(18):20163. doi: 10.2807/ese.17.18.20163-en.

Authors

I Bonmarin¹, E Belchior, Y Le Strat, D Levy-Bruhl

Affiliation

¹ Département des maladies infectieuses, Institut de veille sanitaire, Saint-Maurice, France. [email protected]

PMID: 22587956
DOI: 10.2807/ese.17.18.20163-en

Abstract

Following a suspected virus-vaccine mismatch, the screening method was used to estimate in almost real time the influenza vaccine effectiveness (VE) against severe cases in high-risk individuals. Data on vaccination status were provided by the influenza severe surveillance system and data on vaccination coverage by the National Social Security Scheme. The analysis showed a decline of the vaccine effectiveness in 2011/12 (VE: 30% (95% CI: 22-39)) compared to 2010/11 (VE: 53% (95% CI: 40-67)).

Publication types

Comparative Study

MeSH terms

Aged
Disease Outbreaks / prevention & control*
Disease Outbreaks / statistics & numerical data
Female
France / epidemiology
Humans
Influenza A Virus, H3N2 Subtype / isolation & purification*
Influenza Vaccines / administration & dosage*
Influenza, Human / epidemiology
Influenza, Human / prevention & control*
Influenza, Human / virology
Intensive Care Units
Male
Program Evaluation
Risk Factors
Seasons
Sentinel Surveillance
Vaccination / statistics & numerical data

Substances

Influenza Vaccines