virus (3) Swine (3) Cells (3) voie respiratoire (2) infection (2) ligne (2) Viruses--Reproduction (2) Viruses (2) Messenger RNA (2) Infection (2) Gene expression (2) Expression (2) Epithelial cells (2) Porcine reproductive and respiratory syndrome (2) Viruses (2) Pathogenesis (2) poids (1) test (1) agent pathogène (1) modèle (1) analyse (1) gène (1) maladie (1) bovins (1) Causes (1) Causative (1) Treatment (1) Metabolites (1) Genes (1) Trachea (1)