%0 Journal Article %T Longitudinal field studies reveal early infection and persistence of influenza A virus in piglets despite the presence of maternally derived antibodies %A Charlotte Sonne Kristensen %A Inge Larsen %A Jesper Schak Krog %A Lars Erik Larsen %A Pia Ryt-Hansen %A Silke Wacheck %J Archive of "Veterinary Research". %D 2019 %R 10.1186/s13567-019-0655-x %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6530179/