Porcine circovirus-2 associated disease in swine in Ontario (2004 to 2005).

Abstract

Since late fall of 2004, we have observed the emergence of new respiratory, digestive, hemolymphatic, vascular, and renal lesions associated with Porcine circovirus-2 (PCV-2) infection in pigs in Ontario. These lesions were seen in late nursery, grower, and finisher pigs, 2–3 wk after placement. Affected pigs had a rasping cough, diarrhea, or both. Pigs were often in poor body condition and had generalized lymphadenopathy.