Difference between revisions of "Actinobacillus suis"

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**Pneumonia in pigs and horses
 
**Pneumonia in pigs and horses
  
[[Category:Actinobacillus_species]][[Category:Pig]][[Category:Horse Bacteria]]
+
[[Category:Actinobacillus_species]][[Category:Pig Bacteria]][[Category:Respiratory Diseases - Pig]][[Category:Horse Bacteria]]
 
[[Category:To_Do_-_Bacteria]]
 
[[Category:To_Do_-_Bacteria]]

Revision as of 18:19, 17 January 2011

  • May be present in upper respiratory tract of sows
  • Pathogenicity and clinical signs:
    • Infection of piglets via aerosol or possibly skin abrasions
    • Fatal septicaemia in piglets 1-8 weeks old
    • Mortality up to 50% in some litters
    • Fever, respiratory distress, prostration and paddling of forelimbs seen in piglets
    • Petechial and ecchymotic haemorrhages in many organs
    • Interstitial pneumonia, pleuritis, meningoencephalitis, myocarditis and arthritis
    • Causes abscesses in joints and lungs of older pigs
    • Carried in the nasopharynx of pigs and nose of horses
    • Carriage may confer immunity to the more severe pleuropneumonia
  • Diagnosis:
    • Specimens cultured on blood agar and MacConkey agar for 1-3 days
    • Sticky haemolytic colonies
    • Pink, lactose-fermenting colonies on MacConkey agar
  • Treatment and control:
    • Bacteria usually susceptible to ampicillin, carbenicillin, potentiated sulphonamides and tetracyclines
    • Disinfect contaminated pens
  • Other animals:
    • Septicaemia and pneumonia in foals
    • Pneumonia in pigs and horses