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| | *Dusty conditions in paddocks should be avoided | | *Dusty conditions in paddocks should be avoided |
| | *Hyperimmune serum from the dam may be given to the foal in the first month of life | | *Hyperimmune serum from the dam may be given to the foal in the first month of life |
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| | + | [[Image:Pyogranulomatous lungs due to Rhodococcus Equi.jpg|right|thumb|100px|<small><center>Pyogranulomatous lesions due to Rhodococcus equi (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]] |
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| | + | *Causative agent [[Rhodococcus equi|''Rhodococcus (Corynebacterium) equi'']] |
| | + | *Important cause of sever, often fatal [[Lungs Inflammatory - Pathology#Granulomatous pneumonia|granulomatous]] [[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] in foals |
| | + | *Clinical signs include depression, cough, weight loss, respiratory distress, diarrhoea, arthritis, subcutaneous abscesses |
| | + | *Bacterium survives phagocytosis and multiplies |
| | + | *Bacterial toxins -> caseous necrosis in lungs -> attracts inflammatory cells -> pyogranulomatous pneumonia |
| | + | *Grossly: |
| | + | **Multiple firm nodules, usually no encapsulation |
| | + | **Partial [[Lungs Ventilation - Pathology#Atelectasis (Collapse)|atelectasis]] |
| | + | *Histologically: |
| | + | **Pyogranulomatous lesions |
| | + | **Macrophages with ingested microorganisms in the alveoli |
| | + | **Necrosis spreading through parenchyma |
| | [[Category:Bacteria miscellaneous]][[Category:Gram_positive_bacteria]][[Category:Cocci]][[Category:Rods]][[Category:Horse]] | | [[Category:Bacteria miscellaneous]][[Category:Gram_positive_bacteria]][[Category:Cocci]][[Category:Rods]][[Category:Horse]] |
| | [[Category:To_Do_-_Bacteria]] | | [[Category:To_Do_-_Bacteria]] |