title: Fears grow over lab-bred flu.
authors.forename: Declan
authors.initials: D
authors.lastname: Butler
mesh_terms: D000818:Animals; D003264:Containment of Biohazards; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000235:genetics / Q000502:physiology*; D007753:Laboratories / Q000331:legislation & jurisprudence / Q000592:standards*; D009154:Mutation; D009976:Orthomyxoviridae Infections / Q000635:transmission* / Q000821:virology; D012449:Safety; D013048:Specimen Handling; D014773:Virology / Q000379:methods