Method 1623
Giardia & Cryptosporidium
Knowledge Review: Cryptosporidium
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Select all diagnostic features which indicate the organisms in the photographs are possible Cryptosporidium.
(The photographs do not depict the same organism. Assume the microscope is adjusted for maximum contrast and resolution.)

Cryptosporidium

1. One sporozoite
2. Correct shape – round to oval
3. Amorphous internal structure
4. "Pac Man" look
5. Nuclei DAPI stained
6. Brilliant apple-green fluorescence
7. Two sporozoites
8. Three sporozoites
9. Wrinkled
10. Folded


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