title: With reference to Mexican flu.
authors.forename: Xavier
authors.initials: X
authors.lastname: de Lamballerie
authors.forename: Ernest A
authors.initials: EA
authors.lastname: Gould
mesh_terms: D002965:Classification / Q000379:methods*; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000145:classification* / Q000235:genetics; D007251:Influenza, Human / Q000453:epidemiology* / Q000821:virology; D008800:Mexico / Q000453:epidemiology