Kissling, EValenciano, MI-MOVE Case-Control Studies TeamJimenez-Jorge, SilviaMateo-Ontañon, Salvador dePozo Sanchez, FranciscoLedesma, JuanCasas Flecha, InmaculadaLarrauri, Amparo2023-02-102023-02-102011-03-17Euro Surveill. 2011 Mar 17;16(11):19818.http://hdl.handle.net/20.500.12105/15490We present early estimates (up to week 4 of 2011) of the 2010/11 seasonal influenza vaccine effectiveness in preventing medically attended influenza-like illness(ILI) laboratory confirmed as influenza. Practitioners from seven European sentinel networks systematically swabbed ILI patients. We included patients meeting the European Union ILI case definition and swabbed less than eight days after symptom onset. Laboratory-confirmed influenza cases were compared with negative controls. The adjusted vaccine effectiveness was 42.3% (95% CI: -7.3 to 69.0%), suggesting moderate protection of the seasonal vaccine.engVoRhttp://creativecommons.org/licenses/by/4.0/Disease OutbreaksAdolescentAdultAgedCase-Control StudiesChildEuropeEuropean UnionFemaleHumansInfantInfant, NewbornInfluenza A Virus, H1N1 SubtypeInfluenza VaccinesInfluenza, HumanMaleMiddle AgedSentinel SurveillanceTreatment OutcomeVaccinationYoung AdultAtribución 4.0 Internacional2143532916111981810.2807/ese.16.11.19818-en1560-7917Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletinopen access