title: [Return of the swine influenza virus].
mesh_terms: D004196:Disease Outbreaks / Q000266:history / Q000517:prevention & control; D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D009980:Influenza A virus / Q000302:isolation & purification*; D007251:Influenza, Human / Q000453:epidemiology* / Q000382:microbiology; D009426:Netherlands; D009975:Orthomyxoviridae / Q000302:isolation & purification*; D014481:United States
vernacular_title: De wederkomst van het varkens-influenzavirus