Coccidioides

1. Distinguish between Coccidioides and other organisms that may grow on media from various body sites. 2. Distinguish between a monomorphic yeast seen on tissue stain and the dimorphic seen with Coccidioides. 4. Outline conditions for specimens believed to contain dimorphic yeast. 5. List the various media routinely used for culture of systemics

6 cards   |   Total Attempts: 188
  

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Cards In This Set

Front Back
What are some of the microscopic and macroscopic characteristics of Coccidioides grown at 25 degrees Celsius?
Sptated hyphae and arthroconidia are produced, macroscopic: initially moist and gray, later appear white and cottony
What are some of the microscopic and macroscopic characteristics of Coccidioides grown at 37 degrees Celsius?
Large spherules filled with endospores are present, macroscopic: same as at 25 Coccidioides immitis/posadasii still grow as a mould
Question 3
Tissue or mold form?
Answer 3
Tissue
Question 4
Tissue or mold form
Answer 4
Mold
What are some of the media routinely used for Coccidioides?
Grows well on most common laboratory media within 5 days
What are some other tests for Coccidioides?
Nucleic acid (gene) probing, exoantigen testing, detection of antibodies, PCR