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Vaccination
Management
Disease Information
A PMWS update (Jake Waddilove)
ABOUT PMWS & PDNS
National Pork Board PMWS Fact Sheet
About PDNS (Jake Waddilive)
CEI Emerging Disease Notices: PMWS / PDNS
Conference and meetings archive
Case Histories
Yorkshire Farm, UK - Mike Muirhead - Final Update, June 2002
Mike Muirhead's case history of a Yorkshire farm with PMWS and PDNS.
East Anglia Farm, UK - Philip Richardson
This paper charts the course and effects of the disease on a single herd as well as highlighting the economic impact.
Photographs
Clinical signs
Photos of the clinical signs that are seen generally in pigs with PMWS and PDNS. Includes skin lesions, enlarged lymph glands, wasting and dead pigs.
Post mortem (1)
Photos of the signs that are seen in post-mortem samples of pigs with PMWS and PDNS. Includes interstitial pneumonia, secondary bacterial infection, enlarged lymph nodes, oedema and intra cytoplasmic inclusions
Post mortem (2)
More Photos of the signs that are seen in post-mortem samples of pigs with PMWS and PDNS.


PMWS Research Archives

Published Friday, December 30, 2011: Pig Journal Volume: 66
Unusual Manifestation of Porcine Circovirus-Associated Disease (PCVAD) among Vaccinated Grower Finisher Pigs With Isolation of PCV2 from Tissues
B.W. Strugnell, M.E.C.White, R.J. Higgins, G. Ibata, S. Grierson, M. Banks
Vaccines against Porcine Circovirus type 2 (PCV2) have recently become available in the UK and have changed the landscape of Porcine Circovirus Associated Disease (PCVAD), resulting in significant improvements in growing pig performance,mortality rates and consequent improved pig welfare in the majority of vaccinated herds. In contrast, this case report describes an acute clinical presentation with high mortality accompanied by necrotic tonsillitis, hepatitis and splenic infarction, attributable to PCVAD, in vaccinated grower pigs soon after entering continuous flow accommodation. The PCV2 virus grew readily in tissue culture but no novel or unique features of the viral genome were detected to account for the unusual clinico-pathological presentation. It was hypothesised that despite PCV2 vaccination, new entrant grower pigs immune status proved inadequate to fully protect against the high natural PCV2 and mixed bacterial challenges in the continuous flow system. PCVAD should be included as an important differential diagnosis for such acute clinical presentations with high mortality which could be mistaken for Notifiable Diseases such as swine fever or Aujeszky’s disease.

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