IFNG and influenza: This study is therefore supporting previous finding that influenza vaccines for pigs based on WIV and formulated with adjuvant are able to generate T cell responses with IFNγ secreting effector functions; moreover, it supports the generation of T cell responses with cross reactivity against viruses of different linages For this purpose, a collection of peptides spanning the entire length of the NP and M1 proteins was tested ex-vivo by using an IFNγ ELISPOT assay on PBMC harvested from Babraham's pigs previously immunized with IAV.