title: [Persistent infection with the classical swine fever virus in vaccinated animals: a risk factor?].
authors.affiliation: Centraal Veterinair Instituut van Wageningen UR.
authors.forename: Willie
authors.initials: W
authors.lastname: Loeffen
mesh_terms: D000818:Animals; D006691:Classical Swine Fever / Q000453:epidemiology / Q000517:prevention & control*; D006692:Classical Swine Fever Virus / Q000254:growth & development / Q000302:isolation & purification* / Q000472:pathogenicity; D004196:Disease Outbreaks / Q000662:veterinary; D018570:Risk Assessment; D012307:Risk Factors; D013552:Swine; D014611:Vaccination / Q000662:veterinary*; D022581:Vaccines, Marker / Q000008:administration & dosage; D014765:Viral Vaccines / Q000008:administration & dosage
chemical_list: D022581:Vaccines, Marker; D014765:Viral Vaccines