Bacterial infections on farms affected by PRRS | Бактериалните инфекции във ферми, засегнати от PRRS

aetiology alojamiento de animales animal housing bacteriose bacterioses bacteriosis cerdo diagnosis diagnostic enfermedades infecciosas etiologia etiologie exploitation agricole explotaciones agrarias farms infectious diseases logement des animaux maladie infectieuse pathogenese pathogenesis porcin prrs sdrp srrp swine