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Related Experiment Videos

Swine and circovirus.

M Banks1, S Grierson, D Tucker

  • 1VLA Weybridge, UK. m.banks@vla.defra.gsi.gov.uk

Developments in Biologicals
|October 25, 2006
PubMed
Summary
This summary is machine-generated.

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Post-weaning multi-systemic wasting syndrome (PMWS) in pigs is linked to Porcine circovirus type 2 (PCV-2). Further research is needed to identify additional factors contributing to this complex swine disease.

Area of Science:

  • Veterinary Pathology
  • Swine Disease Research
  • Molecular Pathogenesis

Background:

  • Post-weaning multi-systemic wasting syndrome (PMWS) emerged in the 1990s, causing significant economic losses in pig production.
  • PMWS is characterized by wasting, respiratory, enteric, and lymphoid issues in pigs aged 4-16 weeks, now with a global distribution.
  • Porcine circovirus type 2 (PCV-2) is consistently associated with PMWS and is widely considered the causative agent.

Purpose of the Study:

  • To investigate the aetiopathogenesis of PMWS by exploring the role of PCV-2 and potentially other unidentified factors.
  • To apply a comprehensive suite of analytical techniques to understand the complex disease mechanisms.
  • To examine samples from a prospective clinical case-control study to identify contributing agents.

Main Methods:

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  • Utilized a holistic approach integrating advanced analytical techniques such as immune phenotyping, cytokine response analysis, micro-array profiling, and proteomics.
  • Employed classical pathological and etiological investigation methods.
  • Conducted a prospective clinical case-control study with sample collection for detailed examination.

Main Results:

  • Preliminary findings are discussed in relation to the ongoing efforts to understand PMWS aetiopathogenesis.
  • Evidence suggests PCV-2 is necessary but not sufficient for the full clinical manifestation of PMWS.
  • The study highlights the complexity of PMWS, indicating the involvement of unidentified factors alongside PCV-2.

Conclusions:

  • A multi-faceted approach is crucial for unraveling the complex aetiopathogenesis of PMWS.
  • Further research is required to identify the unknown factors contributing to PMWS.
  • Understanding the complete disease mechanism is essential for developing effective control strategies for this global swine disease.