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United Kingdom


the cause of a highly contagious and common disease

Pigs indoors


On non-vaccinated farms, PCV2 prevalence is around 75%1, although vaccination is effective at reducing clinical signs and is widely carried out in the UK. The virus causes a wide range of signs which may be apparent (clinical) or invisible (subclinical):


  • PCV2 is responsible for the well-recognised Post-weaning Multisystemic Wasting Syndrome (PMWS) and Porcine Dermatitis and Nephropathy Syndrome (PDNS)

  • Respiratory, reproductive and intestinal systems may be affected

  • PCV2 infection has also been linked to pleurisy which can reduce carcase value at the abattoir2


  • Most symptoms are subclinical, with serious economic impacts such as reduced growth rates

  • Research has shown that vaccination of pigs subclinically infected with PCV2 resulted in improved daily gain, reduced mortality and increased carcase weight3



1. Wieland et al. (2010) The Pig Journal 63: pp. 20-24.
2. Jager et al. (2010) IPVS Congress Proceedings: p. 650
3. Young et al. (2011) Journal of Swine Health and Production 19 (3): pp. 175-180


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Livestock Farming Pig