Etiology of acute respiratory disease in fattening pigs in Finland - Haimi-Hakala, Minna (University of Helsinki. Department of Production Animal Medicine) ; Hälli, Outi (University of Helsinki. Department of Production Animal Medicine) ; Laurila, Tapio (University of Helsinki. Department of Production Animal Medicine) ; Raunio-Saarnisto, Mirja (Finnish Food Safety Authority Evira) ; Nokireki, Tiina (Finnish Food Safety Authority Evira) ; Laine, Taina (Finnish Food Safety Authority Evira) ; Nykäsenoja, Suvi (Finnish Food Safety Authority Evira) ; Pelkola, Kirsti (Finnish Food Safety Authority Evira) ; Segalés Coma, Joaquim (Universitat Autònoma de Barcelona. Departament de Sanitat i d'Anatomia Animals) ; Sibila, Marina (Institut de Recerca i Tecnologia Agroalimentàries. Centre de Recerca en Sanitat Animal) ; Oliviero, Claudio (University of Helsinki. Department of Production Animal Medicine) ; Peltoniemi, Olli (University of Helsinki. Department of Production Animal Medicine) ; Pelkonen, Sinikka (Finnish Food Safety Authority Evira) ; Heinonen, Mari (University of Helsinki. Department of Production Animal Medicine)