• 1
    World Health Organization. Preliminary review of D222G amino acid substitution in the haemagglutinin of pandemic influenza A(H1N1) 2009 viruses. Wkly Epidemiol Rec 2010; 85: 2122.
  • 2
    Kilander A, Rykkvin R, Dudman SG, Hungnes O. Observed association between the HA1 mutation D222G in the 2009 pandemic influenza A(H1N1) virus and severe clinical outcome, Norway 2009–2010. Euro Surveill 2010; 15: 19498.
  • 3
    Mak GC, Au KW, Tai LS et al. Association of D222G substitution in haemagglutinin of 2009 pandemic influenza A (H1N1) with severe disease. Euro Surveill 2010; 15: 19534.
  • 4
    Miller RS, MacLean AR, Gunson RN, Carman WF. Occurrence of hemagglutinin mutation D222G in pandemic influenza A(H1N1) infected patients in the West of Scotland, United Kingdom, 2009–10. Euro Surveill 2010; 15: 19546.
  • 5
    Anton A, Marcos MA, Martinez MJ et al. D225G mutation in the hemagglutinin protein found in 3 severe cases of 2009 pandemic influenza A (H1N1) in Spain. Diagn Microbiol Infect Dis 2010; 67: 207208.
  • 6
    Zarychanski R, Stuart TL, Kumar A et al. Correlates of severe disease in patients with 2009 pandemic influenza (H1N1) virus infection. CMAJ 2010; 182: 257264.
  • 7
    Bernard GR, Artigas A, Brigham KL et al. The American–European Consensus Conference on ARDS. Definitions, mechanism, relevant outcomes, and clinical trial coordination. Am J Respir Crit Care Med 1994; 149: 818824.
  • 8
    Paolucci S, Baldanti F, Campanini G et al. Analysis of HIV drug-resistant quasispecies in plasma, peripheral blood mononuclear cells and viral isolates from treatment-naive and HAART patients. J Med Virol 2001; 65: 207217.
  • 9
    Shen J, Ma J, Wang Q. Evolutionary trends of A(H1N1) influenza virus hemagglutinin since 1918. PLoS ONE 2009; 4: e7789.
  • 10
    Newhouse EI, Xu D, Markwick PR et al. Mechanism of glycan receptor recognition and specificity switch for avian, swine, and human adapted influenza virus hemagglutinins: a molecular dynamics perspective. J Am Chem Soc 2009; 131: 1743017442.
  • 11
    Puzelli S, Facchini M, Spagnolo D et al. Transmission of hemagglutinin D222G mutant strain of pandemic (H1N1) 2009 virus. Emerg Infect Dis 2010; 16: 863865.