%0 Journal Article %A Fry, Alicia M %A Flannery, Brendan %A Olsen, Sonja J %A Grohskopf, Lisa %A Bresee, Joseph %T Letter to the editor: Regarding the editorial by Penttinen and Friede %D 2016 %J Eurosurveillance %V 21 %N 40 %P 30366 %R doi:https://doi.org/10.2807/1560-7917.ES.2016.21.40.30366 %K vaccines and immunization %K influenza virus %K influenza %U https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2016.21.40.30366