A REVIEW OF THE INFLUENCE OF PCV2 IN REPRODUCTIVE FAILURE AND IMPROVEMENT OF REPRODUCTIVE PARAMETERS AS A RESULT OF USING PCV2 INACTIVATED SOW VACCINE, CIRCOVAC® IN A LARGE NUMBER OF HERDS IN THE UK AND EUROPE
R. NETO and F. JOISEL M

Abstract
Porcine Circovirus type 2 is widespread and is recognised as the causal agent of PMWS.
PMWS was first observed in Canada and France in 1995 and the clinical signs observed in this new syndrome gave its name: Post-weaning Multisystemic Wasting Syndrome (PMWS).
PMWS is a disease generally recognised by wasting, paleness, jaundice, increased mortality and increased antimicrobial use. This syndrome is responsible for huge economic losses in the pig industry, over £468 million a year.
PCV2 presence in the pig is however associated with other diseases than PMWS, including porcine necrotising pneumonia, granulomatous enteritis, porcine respiratory disease complex, PDNS and reproductive problems.
The pathogenesis of PCV2 as a cause of reproductive failure and the importance of PCV2 as a cause of reproductive failure, is less well characterised than the other clinical manifestations of PCV2.

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