Porcine circovirus associated diseases

Summary

Porcine circovirus associated diseases (PCVAD) are the different diseases attributed to porcine circovirus 2 (PCV2). PCV2 is found in most pig herds, but infected pigs do not necessarily show signs of clinical disease.

Concurrent infections with other pathogens including Mycoplasma hyopneumoniae, Haemophilus parasuis, Streptococcus suis and porcine parvovirus have been shown to trigger progression from an asymptomatic PCV2 infection to PCVAD.

Environmental stressors and management factors can affect the severity of disease. These include running out of feed, recent mixing or sorting of pigs, high stocking density, suboptimal temperatures, and poor ventilation.

Topics include:

• Clinical signs
• Porcine dermatitis and nephropathy syndrome (PDNS)
• Diagnosis
• Diagnostic criteria
• How do I manage PCVAD?
• Vaccines