1. Hammond A, Laurenson-Schafer H, Marsland M, et al. Review of the 2017–2018 influenza season in the northern hemisphere. 2018.
2. Thompson WW, Weintraub E, Dhankhar P, et al. Estimates of US influenza-associated deaths made using four different methods. Influenza Other Respir Viruses. 2009;3(1):37–49.
3. Nielsen J, Krause TG, Mølbak K. Influenza-associated mortality determined from all-cause mortality, Denmark 2010/11-2016/17: the FluMOMO model. Influenza Other Respir Viruses. 2018;12(5):591–604.
4. Centers for Disease Control and Prevention (CDC). Surveillance for laboratory-confirmed, influenza-associated hospitalizations—Colorado, 2004-05 influenza season. MMWR Morb Mortal Wkly Rep. 2005;54(21):535–7.
5. Nationale Referenzzentrale für Influenza - Epidemiologie. Jahresbericht Saison 2016/2017. 2017. https://www.ages.at/download/0/0/b000d4e74742d2aaf775d842ae5d57eef4307834/fileadmin/AGES2015/Themen/Krankheitserreger_Dateien/Influenza/influenza_jahresbericht_2016_2017.pdf. Accessed 13 Apr 2018.