At this year’s European Vaccine Initiative (EVI) Rendez-Vous, taking place at Institut Pasteur Paris on 9th December 2015, the scientific coordinator of the FLUCOP Emanuele Montomoli introduced the FLUCOP project to the audience and showed the progress on analysing which factors lead to variable results in haemagglutination inhibition and virus neutralisation assays. This data paves the way for a tool-box of standardised validated serological assays for human influenza vaccines.