title: [Public Health Surveillance during pandemic flu (H1N1) 2009].
authors.affiliation: Dirección General de Salud Pública y Sanidad Exterior, Ministerio de Sanidad y Política Social de España, Madrid, Spain.
authors.forename: Ildefonso
authors.initials: I
authors.lastname: Hernández Aguado
mesh_terms: D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology*; D058873:Pandemics; D011159:Population Surveillance; D011634:Public Health