title: [Bibliometric analysis of scientific output on influenza in Mexico, 2000-2012].
abstract: BACKGROUND
  During the spring of 2009, H1N1 influenza became the first pandemic of the 21st century. There are no bibliometric studies in Mexico that have analyzed this topic in relation to the generation of Mexican knowledge. The aim of this article is to determine the volume and impact of Mexican scientific output published in journals indexed in Science Citation Index (SCI) on influenza from January 1, 2000, to October 1, 2012.
  
  
  METHODS
  All the documents within SCI whose topic was influenza were included; in order to do this, we used the describers influenza or swine flu H1N1. The analysis included authorship, international collaboration, journals, document type, citations and address of correspondence.
  
  
  RESULTS
  In 2000-2012, 241 articles related to influenza were published. The years with the highest number of articles were 2009 (n = 53) and 2010 (n = 62). The journals with the highest quantity of papers were Salud Pública de México (n = 16), PLOS ONE (n = 13), Archives of Medical Research (n = 13) and Vaccine (n = 10). The most investigated area was infectious diseases (18.9 %), followed by internal medicine (14 %) and immunology (14 %), occupational health (13 %) and experimental medicine (12.3 %).
  
  
  CONCLUSIONS
  The scientific output on influenza supposes near 1 % of the total of the medical-scientific production with a decline posterior to the outbreak of 2009 pandemic influenza.
authors.affiliation: Grupo de Estudios Métricos de la Información en Salud (EMIS), Instituto Mexicano del Seguro Social, Distrito Federal, México. jose.castillope@imss.gob.mx.
authors.forename: José Juan
authors.initials: JJ
authors.lastname: Castillo-Pérez
authors.forename: Luz
authors.initials: L
authors.lastname: Muñoz-Valera
authors.forename: Francisco
authors.initials: F
authors.lastname: García-Gómez
authors.forename: Juan Manuel
authors.initials: JM
authors.lastname: Mejía-Aranguré
mesh_terms: D015706:Bibliometrics; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology*; D008800:Mexico / Q000453:epidemiology; D058873:Pandemics; D012189:Retrospective Studies
keywords: Bibliometric indicators; Bibliometrics; H1N1 subtype influenza A virus; Scientific output