Difference between revisions of "Coccidioidomycosis"
Jump to navigation
Jump to search
Line 32: | Line 32: | ||
*Complement fixation test, latex agglutination and immunodiffusion tests can all be used | *Complement fixation test, latex agglutination and immunodiffusion tests can all be used | ||
**A positive skin test indicates exposure | **A positive skin test indicates exposure | ||
+ | |||
+ | ==Test yourself with the Systemic Mycoses Flashcards== | ||
+ | |||
+ | [[Systemic_Mycoses_-_WikiBugs#Coccidioidomycosis|Coccidioidomycosis Flashcards]] | ||
+ | |||
[[Category:Systemic_Mycoses]] | [[Category:Systemic_Mycoses]] | ||
[[Category:To_Do_-_Fungi]] | [[Category:To_Do_-_Fungi]] |
Revision as of 13:39, 18 August 2010
- Coccidioides immitis
- Ocurs in the soil
- Respiratory infections
- Most commonly seen following dust storms
- Occurs in arid regions
- E.g. South West USA and Mexico
- Non-contageous, systemic mycosis
- Affects dogs, cattle, sheep and humans
- Mainly affects the lungs
- Dissemination can occur to other organs
- Causes nodule or granuloma formation
- Thick-walled spherules in tissue
- Large sporangia burst leaving 'ghost' spherules
- Saprophytic phase consists of coarse, septate, branching hyphae which fragment into thick-walled, barrel-shaped arthrospores which alternate with empty cells
- Stained by Lactose Phenol Cotton Blue
- Grows on Sabouraud's Dextrose agar and Blood agar
- Flat, moist colonies which develop a coarse, cotton-like aerial mycelium which varies from white to brown in colour
- Complement fixation test, latex agglutination and immunodiffusion tests can all be used
- A positive skin test indicates exposure