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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, March 05, 2010: Vet J. 2010 Mar 5. [Epub ahead of print]
Prevalence of Porcine Circovirus Types 2a and b in Pigs with and without Post-Weaning Multi-Systemic Wasting Syndrome.
Kim D, Ha Y, Oh Y, Chae C.
The objective of this study was to determine the prevalence of porcine circovirus (PCV) type 2 genotypes in pigs with post-weaning multi-systemic wasting syndrome (PMWS) and in pigs that that did not have the disease. Nested PCR was used to analyse tissue from 540 formalin-fixed, paraffin-embedded lymph nodes. The number of PCV2a-positive pigs that had (chi(trend)(2)=54.584, P<0.001) and did not have (chi(trend)(2)=70.066, P<0.001) PMWS decreased significantly between the years 2000 and 2008. However, over this time-period, there was a significant increase in the number of animals infected with PCV2b that had (chi(trend)(2)=31.356, P<0.001) and did not have (chi(trend)(2)=9.494, P<0.001) PMWS. The findings demonstrate a significant overall increase in PCV2b infection in pigs that both have and do not have PMWS. Further studies will be required to determine the potential relationship between PCV2b infection and the increasing incidence of PMWS in Korea.

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