• 1
    Nicoll A, Ciancio BC, Lopez Chavarrias V et al. Influenza-related deaths – available methods for estimating numbers and detecting patterns for seasonal and pandemic influenza in Europe. Euro Surveill 2012; 17:113.
  • 2
    Gran JM, Iversen B, Hungnes O, Aalen OO. Estimating influenza-related excess mortality and reproduction numbers for seasonal influenza in Norway, 1975–2004. Epidemiol Infect 2010; 123:15591568.
  • 3
    Thompson WW, Shay DK, Weintraub E et al. Mortality associated with influenza and respiratory syncytial virus in the United States. J Am Med Assoc 2003; 289:179186.
  • 4
    Foppa IM, Hossain M. Revised estimates of influenza-associated excess mortality, United States, 1995 through 2005. Emerg Themes Epidemiol 2008; 5:110.
  • 5
    Zucs P, Buchholz U, Haas W, Uphoff H. Influenza associated excess mortality in Germany, 1985–2001. Emerg Themes Epidemiol 2005; 2:19.
  • 6
    Burnham KP, Anderson DR. Model Selection and Multimodel Inference: A Practical Information Theoretic Approach, 2nd ed. Berlin, Germany: Springer-Verlag, 2002.
  • 7
    Efron B, Tibshirani RJ. An Introduction to the Bootstrap. New York: Chapman & Hall/CRC, 1993.
  • 8
    R Development Core Team. R: A Language and Environment for Statistical Computing. Vienna, Austria: R Foundation for Statistical Computing, 2008.
  • 9
    MazickA, Gergonne B, Wuillaume F et al. Higher all-cause mortality in children during autumn 2009 compared with the three previous years: pooled results from eight European countries. Euro Surveill 2010; 15:14.
  • 10
    Gergonne B, Mazick A, O'Donnell J et al. EuroMoMo Project, WP7 Report: A European Algorithm for a Common Monitoring of Mortality across Europe. Copenhagen: Statens Serum Institut, 2011.
  • 11
    Serfling RE. Methods for current statistical analysis of excess pneumonia-influenza deaths. Public Health Rep 1963; 78:494506.
  • 12
    Warren-Gash C, Bhaskaran K, Hayward A et al. Circulating influenza virus, climatic factors, and acute myocardial infarction: a time series study in England and Wales and Hong Kong. J Infect Dis 2011; 203:17101718.
  • 13
    Warren-Gash C, Hayward AC, Hemingway H et al. Influenza infection and risk of acute myocardial infarction in England and Wales: a CALIBER self-controlled case series study. J Infect Dis 2012; 206:16521659.
  • 14
    Foster ED, Cavanaugh JE, Haynes WGet al. Acute myocardial infarctions, strokes and influenza: seasonal and pandemic effects. Epidemiol Infect 2012; 141:735744.
  • 15
    Yang L, Chan KP, Cowling BJ et al. Excess mortality associated with the 2009 pandemic of influenza A(H1N1) in Hong Kong. Epidemiol Infect 2011; 140:15421550.
  • 16
    Armstrong GL, Brammer L, Finelli L. Timely assessment of the severity of the 2009 H1N1 influenza pandemic. Clin Infect Dis 2011; 53:8389.
  • 17
    Viboud C, Miller M, Olson D, Osterholm M, Simonsen L. Preliminary estimates of mortality and years of life lost associated with the 2009 A/H1N1 pandemic in the US and comparison with past influenza seasons. PLoS Currents 2010; 2:RRN1153.
  • 18
    Hardelid P, Pebody R, Andrews N. Mortality caused by influenza and respiratory syncytial virus by age group in England and Wales 1999–2010. Influenza Other Respir Viruses 2012; 7:3545.
  • 19
    Hardelid P, Andrews N, Pebody R. Excess mortality monitoring in England and Wales during the influenza A(H1N1) 2009 pandemic. Epidemiol Infect 2011; 139:14311439.
  • 20
    Lyytikaïnen O, Kuusi M, Snellman M et al. Surveillance of influenza in Finland during the 2009 pandemic. Euro Surveill 2011; 16:17.
  • 21
    Mølbak K, Widgren K, Jensen KS et al. Burden of illness of the 2009 pandemic of influenza A (H1N1) in Denmark. Vaccine 2011; 29:B63B69.
  • 22
    Government of Alberta. Review of Deaths Occurring in Alberta During the 2009 Influenza Pandemic. Edmonton: Government of Alberta, 2012.
  • 23
    WaalenK, Kilander A, Dudman SG, Krogh GH, Aune T, Hungnes O. High prevalence of antibodies to the 2009 pandemic influenza A(H1N1) virus in the Norwegian population following a major epidemic and a large vaccination campaign in autumn 2009. Euro Surveill 2010; 15:16.
  • 24
    Report of the Review Committee on the Functioning of the International Health Regulations (2005) and on Pandemic Influenza (H1N1) 2009. Geneva: World Health Organization, 2011.
  • 25
    Reed C, Biggerstaff M, Finelli L et al. Novel framework for assessing epidemiologic effect of influenza epidemics and pandemics. Emerg Infect Dis 2013; 19:8591.
  • 26
    de Blasio BF, Iversen BG, Tomba GS. Effect of vaccines and antivirals during the major 2009 A(H1N1) pandemic wave in Norway – and the influence of vaccination timing. PLoS ONE 2012; 7:e30018.
  • 27
    de Blasio BF, Xue Y, Iversen B, Gran JM. Estimating influenza-related sick leave in Norway: was work absenteeism higher during the 2009 A(H1N1) pandemic compared to seasonal epidemics? Euro Surveill 2012; 17:111.
  • 28
    Folkehelseinstituttet. Statusrapport om ny influensa A(H1N1), 7. January 2010 [Status Report on New Influenza A(H1N1), 7 January 2010]. Oslo: Norwegian Institute of Public Health, 2010.