[Pathogenic bacteria - the objective is prevention [swine - respiratory diseases]]

actinobacillus pleuropneumoniae apparato respiratorio bordetella bronchiseptica cerdo diagnosi diagnosis diagnostic disease transmission enfermedades respiratorias haemophilus immunity inmunidad lesiones lesioni lesions maladie respiratoire malattie respiratorie mycoplasma hyopneumoniae pasteurella multocida pathogens pathologie pathology patogeni patologia porcin respiratory diseases respiratory system sintomi sistema respiratorio streptococcus suis suini swine symptome symptoms transmission des maladies trasmissione delle malattie