THE SEVERITY AND RELEVANCE OF PORCINE CIRCOVIRUS TYPE 2 INFECTIONS IN PIGS WITH RESPIRATORY DISEASES FROM HERDS WITH HIGH (CASES) OR LOW (CONTROLS) PNEUMONIA SCORES AT SLAUGHTER

摘要

Porcine circovirus type-2 associated diseases (PCVAD) are an important concern to swine producers all over the world. In addition to PMWS, PCV2 was also found in association with porcine respiratory disease complex (PRDC) and proliferative and necrotizing pneumonia (PNP) (2). In the US, PCV2 associated pneumonia is the most common presentation of PCV2 associated diseases, however, little or no information is available about whether PCV2 can be associated with pneumonia in pigs from Dutch swine herds.The purpose of this study was to get more insight into the status and severity of PCV2 infections in Dutch pigs showing signs of respiratory distress in an endemic situation (situation with a low prevalence of PMWS). This study was not only focused on the detection of PCV2 infections but also on the presence of other infectious agents associated with respiratory diseases in swine.