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Protection and immune response in pigs intradermally vaccinated against porcine reproductive and respiratory syndrome (PRRS) and subsequently exposed to a heterologous European (Italian cluster) field strain

VaccinationVeterinary VaccineVaccine DevelopmentImmunologyVeterinary SciencePorcine DiseaseSwine VirusRespiratory SyndromeInfection ControlField StrainMedicineParasitologyItalian Cluster