Inclusion body rhinitis
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Inclusion Body Rhinitis, also known as IBR or Cytomegalic Inclusion Disease, is a pig disease caused by porcine cytomegalovirus, which is a member of the herpesvirus family. It is a notifiable disease that is found worldwide. It is spread both vertically and horizontally and prevalence is high.
It is not a zoonosis but the risk to humans that receive pig organ transplants is currently under investigation.
Clinical signs are normally only seen in either piglets less than 3 weeks old or pregnant sows.
A presumptive diagnosis can be made based on the history and clinical signs. Definitive diagnosis is achieved by direct or indirect fluorescent antibody testing (FAT), PCR, post mortem (signs include petechia and pulmonary congestion), histopathology or electron microscopy.
Treatment and control
Often no treatment is required. However, as porcine cytomegalovirus is a herpes virus it remains latent and sheds at times of stress. Therefore husbandry measures to minimise stress levels should be in place.
- Inclusion body rhinitis, reviewed and published by Wikivet at http://en.wikivet.net/Inclusion_Body_Rhinitis, accessed 08/09/2011.