title: WHO and pandemic flu. What happened in Mexico.
authors.forename: Asa Cristina
authors.initials: AC
authors.lastname: Laurell
authors.forename: Joel R
authors.initials: JR
authors.lastname: Herrera
mesh_terms: D000328:Adult; D017677:Age Distribution; D004196:Disease Outbreaks / Q000706:statistics & numerical data*; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000401:mortality*; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged