• 1
    Earhart KC, Beadle C, Miller LK et al. Outbreak of influenza in highly vaccinated crew of U.S. Navy ship. Emerg Infect Dis 2001; 7:463465.
  • 2
    CDC. Swine influenza A (H1N1) infection in two children–Southern California, March-April 2009. MMWR Morb Mortal Wkly Rep 2009; 58:400402.
  • 3
    Dawood FS, Jain S, Finelli L et al. Emergence of a novel swine-origin influenza A (H1N1) virus in humans. N Engl J Med 2009; 360:26052615.
  • 4
    Shu B, Wu K-H, Emery S et al. Design and performance of the CDC real-time reverse transcriptase PCR swine flu panel for detection of 2009 A (H1N1) pandemic influenza virus. J Clin Microbiol 2011; 49:26142619.
  • 5
    Tang JW, Shetty N, Lam TT. Features of the new pandemic influenza A/H1N1/2009 virus: virology, epidemiology, clinical and public health aspects. Curr Opin Pulm Med 2010; 16:235241.
  • 6
    Xu R, Ekiert DC, Krause JC, Hai R, Crowe JE Jr, Wilson IA. Structural basis of preexisting immunity to the 2009 H1N1 pandemic influenza virus. Science 2010; 328:357360.
  • 7
    Hancock K, Veguilla V, Lu X et al. Cross-reactive antibody responses to the 2009 pandemic H1N1 influenza virus. N Engl J Med 2009; 361:19451952.
  • 8
    World Health Organization. WHO Regional Office for Europe guidance for sentinel influenza surveillance in humans. 2011. Available at (Accessed 16 September 2011).
  • 9
    Ksiazek TG, Olson JG, Irving GS, Settle CS, White R, Petrusso R. An influenza outbreak due to A/USSR/77-like (H1N1) virus aboard a US Navy ship. Am J Epidemiol 1980; 112:487494.
  • 10
    CDC. Outbreak of 2009 pandemic influenza A (H1N1) on a Peruvian Navy ship - June-July 2009. MMWR Morb Mortal Wkly Rep 2010; 59:162165.
  • 11
    Miller E, Hoschler K, Hardelid P, Stanford E, Andrews N, Zambon M. Incidence of 2009 pandemic influenza A H1N1 infection in England: a cross-sectional serological study. Lancet 2010; 375:11001108.
  • 12
    Lim W-Y. Risk factors for pandemic (H1N1) 2009 Seroconversion among Adults, Singapore, 2009. Emerg Infect Dis 2011; 17:14551462.
  • 13
    Tarabbo M, Lapa D, Castilletti C et al. Retrospective investigation of an influenza A/H1N1pdm outbreak in an Italian military ship cruising in the Mediterranean Sea, May-September 2009. PLoS ONE 2011; 6:e15933.
  • 14
    Chen MIC, Lee VJM, Lim W-Y et al. 2009 influenza A(H1N1) seroconversion rates and risk factors among distinct adult cohorts in Singapore. JAMA 2010; 14:303.
  • 15
    Iuliano AD, Reed C, Guh A et al. Notes from the field: outbreak of 2009 pandemic influenza A (H1N1) virus at a large public university in Delaware, April–May 2009. Clin Infect Dis 2009; 49:18111820.
  • 16
    Uyeki TM, Zane SB, Bodnar UR et al. Large summertime influenza A outbreak among tourists in Alaska and the Yukon Territory. Clin Infect Dis 2003; 36:10951102.
  • 17
    Dellagi K, Rollot O, Temmam S et al. Pandemic influenza due to pH1N1/2009 virus: estimation of infection burden in Reunion Island through a prospective serosurvey, Austral winter 2009. PLoS ONE 2011; 6:e25738.
  • 18
    Cauchemez S, Donnelly CA, Reed C et al. Household transmission of 2009 pandemic influenza A (H1N1) virus in the United States. N Engl J Med 2009; 361:26192627.
  • 19
    Bandaranayake D, Huang QS, Bissielo A et al. Risk factors and immunity in a nationally representative population following the 2009 influenza A(H1N1) pandemic. PLoS ONE 2010; 5:e13211.
  • 20
    Maltezou HC, Katerelos P, Mavrouli M et al. Seroepidemiological study of pandemic influenza H1N1 following the 2009-2010 wave in Greece. Vaccine 2011; 29:66646669.
  • 21
    Fiore AE, Fry A, Shay D, Gubareva L, Bresee JS, Uyeki TM. Antiviral agents for the treatment and chemoprophylaxis of influenza — recommendations of the Advisory Committee on Immunization Practices (ACIP). MMWR Recomm Rep 2011; 60:124.
  • 22
    Harper SA, Bradley JS, Englund JA et al. Seasonal influenza in adults and children–diagnosis, treatment, chemoprophylaxis, and institutional outbreak management: clinical practice guidelines of the Infectious Diseases Society of America. Clin Infect Dis 2009; 48:10031032.