title: [With winter, return of bird flu].
authors.forename: Jean-Yves
authors.initials: JY
authors.lastname: Nau
mesh_terms: D025041:Animal Migration; D000818:Animals; D001717:Birds; D005062:European Union / Q000191:economics; D005602:France; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype; D005585:Influenza in Birds / Q000191:economics / Q000517:prevention & control*; D007251:Influenza, Human / Q000191:economics / Q000517:prevention & control* / Q000821:virology; D011159:Population Surveillance; D011200:Poultry