Rhodoccocus equi Flashcards
pathogenesis
opportunistic pathogen
intracellular pathogen
inhabitant of soil and GI tract
culture on blood and MacCOnkey agar
major disease
suppurative bronchopneumonia of foals
gram
positive
shape
rod or cocci
media for growth
non enriched
colonies
salmon pink
mucoid
non hemolytic
respiration
aerobic
motility
non motile
CAMP
positive
soil saphrophyte?
yes
clinical conditions in foals 1-4 months
suppurative bronchopneumonia
pulmonary abscessations
clinical conditions of horses
superficial abscessation
clinical conditions of pigs and cattle
mild cervical lymphadenopathy
clinical conditions of cats
subcutaneous abscesses
mediastinal granulomas
clinical conditions of immunosuppressed humans
pneumonia
CAMP test
-R equi produces factor that completely lyses RBC previously damaged by B hemolysis of S aureus
-produces spade shaped pattern of complete hemolysis that extends across streak of S aureus
clinical signs
-fever
-anorexia
-bronchopneumonia – cough, dyspnea, weight loss, exercise intolerance, loud moist rales on lung auscultation
diagnosis
history of disease in farm
leukocytosis
ultrasound of thorax
treatment
rifampin
erythromycin
