title: [A new flu--an old disease in a new suit].
authors.affiliation: Vojnomedicinska akademija, Institut za epidemiologiju, Beograd, Srbija.
authors.forename: Srdan
authors.initials: S
authors.lastname: Lazić
mesh_terms: D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission