Difference between revisions of "Enzootic Pneumonia - Pigs"

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[[Category:Respiratory Diseases - Pig]]
 
[[Category:Respiratory Diseases - Pig]]
 
[[Category:Respiratory_Bacterial_Infections]]
 
[[Category:Respiratory_Bacterial_Infections]]
[[Category:To Do - CABI]]
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[[Category:Jaimie Meagor]]

Revision as of 20:17, 11 June 2011

Enzootic pneumonia of pigs(Image sourced from Bristol Biomed Image Archive with permission)
  • Caused by Mycoplasma hyopneumoniae and Mycoplasma hyorhinis
  • Also called mycoplasmal pneumonia
  • Major cause of unthriftiness in young pigs
  • Pneumonia in weaned pigs
  • Cough, reduced growth rate
  • Attached to cilia - no mucociliary clearance
  • Usually non-fatal unless there is secondary infection (e.g. Pasteurella multocida)
  • Gross pathology:
    • Confluent consolidation of the cranioventral lung lobes
    • In other areas there may be small red to grey focal lesions evident which indicate the bronchiolar orientation of the inflammatory process
  • Histologically
    • Changes result from a catarrhal bronchointerstitial pneumonia
    • In chronic cases, prominent accumulations of lymphoid cells can be seen around airways and blood vessels