Porcine circovirus Type 2 (PCV2) is one of the most devastating and economically significant viruses that affects swine production. Currently, there are three major PCV2 genotypes in circulation: PCV2a, b and d.1 Today, PCV2d is the predominant genotype circulating in the United States, accounting for more than 90% of PCV2 infections.2
The clinical signs of porcine circovirus associated disease (PCVAD) can mimic many other diseases, so it’s important to confirm an accurate diagnosis. Common signs include gradual wasting, diarrhea, enteritis, pneumonia and increased mortality rates. In breeding herds, PCVAD can cause abortions, stillbirths and mummies.
In worst-case PCVAD scenarios, such as a PCV2d infection combined with severe co-infections, some pigs within vaccinated populations can still present clinical signs. In these cases, PCV2d infection can be perceived as lingering in “the corners of the room,” driving down overall herd performance.
Biosecurity and vaccination are the primary means for controlling PCV2 and reducing the severity and incidence rate of PCVAD. To stay ahead on PCVAD management, producers need flexible and comprehensive prevention strategies.
