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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
PMWS and PCV2 Associated Diseases: Historical Progress and a Reflection about Disease Emergence in Pigs
F. Madec
Post-weaning Multisystemic Wasting Syndrome (PMWS) was first described in 1996 in North America, and soon spread worldwide. The pig industry and scientific community witnessed the devastating consequences with dismay. Intensive research was carried out throughout the world.A virus named Porcine Circovirus type 2 (PCV2) was detected in the damaged tissues of affected pigs and considered as the causative infectious agent of the disease. Some genetic changes in the virus have been observed over the years. However, additional conditions were required to obtain clinical disease and the crucial role of the environment offered to the pig was clearly apparent. Thus, infection with PCV2 must be distinguished from clinical disease, which makes PMWS very different from other potentially devastating diseases. The details of pathogenesis have not yet been fully clarified. However, the way the immune system is challenged in infected pigs seems to be of pivotal importance.Vaccines became available 10 to 11 years after the PMWS crisis began. After discussing the reasons for PMWS emergence, based on personal experience, the author considers disease emergence in pigs in general.

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