Correlating sampling methods to porcine circovirus type 2 (PCV2) viremia status of sows and piglets in a sow herd with or without PC V2 revaccination during gestation

摘要

Clinical signs of porcine circovirus type 2 (PC V2) are most commonly observed in late nursery and early finishing pigs. However, clinical signs may appear in the early nursery phase, indicating exposure and infection prior to weaning. This puts pressure on sow farms to better identify and prevent piglets infected with PCV2. Methods currently utilized to determine PCV2 status via PCR virus testing rely on the sampling of various sera, tissues, secretory fluids, and the pig's environment.1 However, it remains unclear what method better correlates to the PCV2 status of sows and piglets.