Determination of predominance of influenza virus strains in the Americas

Eduardo Azziz-Baumgartner, Rebecca J Garten, Rakhee Palekar, Mauricio Cerpa, Sara Mirza, Alba Maria Ropero, Francisco S Palomeque, Ann Moen, Joseph Bresee, Michael Shaw, Marc-Alain Widdowson

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During 2001-2014, predominant influenza A(H1N1) and A(H3N2) strains in South America predominated in all or most subsequent influenza seasons in Central and North America. Predominant A(H1N1) and A(H3N2) strains in North America predominated in most subsequent seasons in Central and South America. Sharing data between these subregions may improve influenza season preparedness.

Original languageEnglish
JournalEmerging Infectious Diseases
Issue number7
Pages (from-to)1209-12
Number of pages4
Publication statusPublished - 2015


  • Americas/epidemiology
  • Epidemics
  • Humans
  • Influenza A Virus, H1N1 Subtype
  • Influenza, Human/epidemiology
  • Prevalence


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