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<quiz-item choice question="Choose the correct answer" text="Which of the following parasites is most likely?" options="Anaplasma sp.|Babesia sp.|Trypanosoma sp.|Mycoplasma sp." answer="Babesia sp.">
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See: https://en.wikipedia.org/wiki/Babesia_bovis#/media/File:Babesia-bovis-piroplasms-cattle.jpg

^ Blood parasite/bacteria ^ Target Cell ^ Cell location ^ size ^ Features ^
| Babesia sp. | RBC | Cytoplasm | **0.5-1.5μm x 1-4μm** | **Single or paired. Ring forms** |
| Trypanosoma sp. | **Plasma** |1-3μm x 15-20μm | **Elongated/spindle shaped**|
| Anaplasma sp.* | **RBC** | Cytoplasm | **<1μm** | Round |
| Ehrlichia sp. | **Monocytes/neutrophils** | Cytoplasm | 1-2μm| Round/oval |
| Mycoplasma sp. | RBC | **Cell surface** | 0.5-3μm | Round, rings or chains |
| Cytauxzoon sp. | **RBCs (piroplasms) and monocytes (Schizonts)** | Cytoplasm | **Piroplasm 0.5-2.5μm. Schizonts 15-250μm much bigger than other leukocytes** | Round/oval to pyriform | 

*Anaplasma platys in dogs infects platelets.
Anaplasma phagocytophilum infects granulocytes and monocytes - both of these used to be called Erhlichia.



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