[Bovine viral diarrhoea virus infection: control planning in the Cotes d'Armor department (France)]

animal health bovin bretagne brittany cattle control de enfermedades diagnosis diagnostic diarrea diarrhoea disease control enfermedades de las mucosas epidemiologia epidemiologie epidemiology ganado bovino maladie des muqueuses pathogenese pathogenesis pestivirus sanidad animal symptome symptoms taxonomia taxonomie taxonomy terapia therapy virose viroses virosis