title: [Bird flu, from a low pathogen to a high pathogen].
authors.forename: Johan Klein
authors.initials: JK
authors.lastname: Haneveld
mesh_terms: D000818:Animals; D001717:Birds; D004196:Disease Outbreaks / Q000662:veterinary*; D009980:Influenza A virus / Q000235:genetics / Q000472:pathogenicity*; D005585:Influenza in Birds / Q000453:epidemiology* / Q000635:transmission* / Q000821:virology; D009154:Mutation; D009426:Netherlands / Q000453:epidemiology; D015047:Zoonoses