Exploring the effect of previous inactivated influenza vaccination on seasonal influenza vaccine effectiveness against medically attended influenza: Results of the European I-MOVE multicentre test-negative case-control study, 2011/2012-2016/2017.
Marta ValencianoEsther KisslingLarrauri AmparoBaltazar NunesDaniela PiţigoiJoan O'DonnellAnnicka ReussJudit Krisztina HorváthIwona Paradowska-StankiewiczCaterina RizzoAlessandra FalchiIsabelle DaviaudMia BryttingAdam MeijerBernard KaicAlin GherasimAusenda MachadoAlina IvanciucLisa DomeganBrunhilde SchweigerAnnamária FerencziMonika KorczyńskaAntonino BellaAna-Maria VilcuAnne MosnierKatherina ZakikhanyMarit de LangeSanja Kurečić FilipovićovićKari JohansenAlain Morennull nullPublished in: Influenza and other respiratory viruses (2018)
We did not identify any pattern of previous influenza vaccination effect. Prospective cohort studies documenting influenza infections, vaccinations and vaccine types are needed to understand previous influenza vaccinations' effects.