Nocardia spp Flashcards
what class of bacteria does nocardia belong to
actinomycetes
what are some of the descriptive characteristics of nocardia
gram +
slow growing
non-spore forming
extensive branching filamentation
what do the nocardia spp. inhabit
soil
what is the most common species of nocardia
N. asteroids
how would you describe the pathogenesis of an N. asteroids infection
chronic progessive disease
what cultures should be used to culture nocardia
Blood Agar
Sabouraud’s Agar
what disease can be present in a cow from a nocardia infection
bovine matitis
how does nocardia gain entry to a cow
contaminated infusion equipment
what is the pathogenesis of nocardia with bovine mastitis
multiple in tissues –> fibrosis –> discrete hard nodules
what is the treatment of bovine mastitis caused by nocardia
no treatment
(culling)
how does nocardia present in cats and dogs
-subcutaneous and lymph node lesions (mycetomas)
-internal lesions
-SEVERE HALITOSIS / GINGIVITIS / ULCERATION
what is a clinical sign of canine nocardiosis
indolent ulcers (slow healing)
granulomatous swelling with discharging fistulous tracts
what are the forms of canine nardiosis
cutaneous
respiratory
disseminated
how is respiratory canine nocardiosis acquired
through inhalation
what is the clinical signs often present with respiratory c. nocardiosis
fluid accumulation in thoracic cavity
fever
respiratory distress
