title: New bird flu strain brings death and questions.
authors.forename: Kai
authors.initials: K
authors.lastname: Kupferschmidt
mesh_terms: D000818:Animals; D002645:Chickens; D004196:Disease Outbreaks / Q000662:veterinary*; D004372:Ducks; D005060:Europe / Q000453:epidemiology; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype / Q000235:genetics / Q000472:pathogenicity; D000071225:Influenza A Virus, H5N8 Subtype / Q000235:genetics / Q000472:pathogenicity*; D005585:Influenza in Birds / Q000453:epidemiology* / Q000821:virology*; D008877:Middle East / Q000453:epidemiology