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*Salmon-pink mucoid colonies due to capsule and pigment production
*Salmon-pink mucoid colonies due to capsule and pigment production
*No haemolysis on blood agar
*No haemolysis on blood agar
*No growth on MacConkey agar
*Aerobic, non-motile
*Aerobic, non-motile
*CAMP test-positive
*CAMP test-positive
*Subcutaneous abscesses and mediastinal granulomas in cats
*Subcutaneous abscesses and mediastinal granulomas in cats
*Pneumonia in HIV patients
*Pneumonia in HIV patients
===Diagnosis===
===Diagnosis===
*History of disease on the farm, age of foals affected and clinical signs
*History of disease on the farm, age of foals affected and clinical signs
*Auscultation and rediography of thorax confirms pulmonary disease
*Auscultation and rediography of thorax confirms pulmonary disease
*
*Specimens: tracheal aspirates and pus from lesions
*Culture aerobically on blood and MacConkey agar for 24-48 hours
*Colony characteristics and biochemical profile
*Quantitative faecal culture on selective media
===Treatment/control===
*Oral rifampin and erythromycin for 4-10 weeks
*Rehydration therapy; bronchodilators; expectorants
*Prevent build-up of bacteria in environment by removing manure from pastures regularly and rotating foals and mares onto clean pastures regularly
*Dusty conditions in paddocks should be avoided
*Hyperimmune serum from the dam may be given to the foal in the first month of life