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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 Monday, November 01, 2004: Veterinary Record, 2004, Volume 155, Nš19, 597-598
Distribution of PCV2 DNA in the reproductive tract, oocytes and embryos of PCV2 antibody-positive pigs.
BIELANSKI A, LAROCHELLE R, ALGIRE J, MAGAR R
The distribution of PCV2 DNA in the reproductive tract of PCV2 antibody positive gilts was investigated. In addition, 120 embryos were collected from 6 PCV2-antibody positive sows slaughtered 6 days after breeding and submitted to PCV2 DNA detection as well. None of them resulted positive to PCV2 DNA. The results are summarized in the following table:

Serum PCV2 antibodies PCV2 nucleic acid
Serum Follicular fluid Oviductal cells Uterine washes Oocytes
% of positive gilts 100% 84% 22% 56% 36% 11%

The detection of PCV2 nucleic acid in the different parts of the reproductive tract indicates that they all can act as potential sources of PCV2 contamination for embryos. The fact that none of the tested embryos resulted positive to PCV2 DNA suggests that embryos fertilized in vivo may have the ability to block PCV2 internalization but it does not mean that embryos obtained by embryo transfer or by in vitro fertilization are protected from PCV2 infection. Further studies are needed to clarify this particular.

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Thursday 20th November

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