’ s response to reviews Title : ICU-treated influenza A ( H 1 N 1 ) pdm 09 infections more severe post pandemic than during 2009 pandemic : a retrospective analysis

Title: ICU-treated influenza A(H1N1) pdm09 infections more severe post pandemic than during 2009 pandemic: a retrospective analysis Authors: Pekka Ylipalosaari (pekka.ylipalosaari@ppshp.fi;pylipalo@gmail.com) Tero Ala-Kokko (tero.ala-kokko@ppshp.fi) Jouko Laurila (jouko.laurila@ppshp.fi) Lauri Ahvenjärvi (lauri.ahvenjarvi@ppshp.fi) Hannu Syrjälä (hannu.syrjala@ppshp.fi) Version: 2 Date: 25 Sep 2017 Author’s response to reviews: Yourr manuscript "ICU-treated influenza A(H1N1) pdm09 infections more severe post pandemic than during 2009 pandemic: a retrospective analysis" (INFD-D-17-00367R1) has been assessed by our reviewers. Based on these reports, and my own assessment as Editor, I am pleased to inform you that it is potentially acceptable for publication in BMC Infectious Diseases, once you have carried out some essential revisions: -------1. Figure files should contain only the image/graphic, as well as any associated keys/annotations. If titles/legends are present within the figure files, please remove them. Figurelegends are now presented in separate sheet