[Elizabeth_Zeibig]_Clinical_Parasitology__A_Practi(z-lib.org)

CHAPTER 5 The Hemoflagellates
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5-4. Which of the following organisms is the
causative agent of Baghdad boils? (Objective
5-3)
A. Leishmania donovani
B. Trypanosoma brucei gambiense
C. Trypanosoma brucei rhodesiense
D. Trypanosoma cruzi
E. Leishmania tropica
5-5. Which of the following organisms is the
causative agent of West African sleeping
sickness? (Objective 5-3)
A. Leishmania donovani
B. Trypanosoma brucei gambiense
C. Trypanosoma brucei rhodesiense
D. Trypanosoma cruzi
E. Leishmania tropica
5-6. Which of the following best describes the
geographic region in which Trypanosoma
rangeli is found? (Objective 5-2)
A. Near East
B. South and Central America
C. Middle East
D. Southeastern United States
5-7. The vector responsible for the transmission
of chiclero ulcer is: (Objective 5-5)
A. Lutzomyia and Psychodopygus
sandflies
B. Phlebotomus and Psychodopygus
sandflies
C. Glossina spp.
D. Lutzomyia and Phlebotomus sandflies
5-8. Choose the best description of zymodeme
analysis: (Objective 5-1)
A. Nuclear DNA hybridization
B. Restriction analysis of the kinetoplast
DNA
C. Analysis of the isoenzyme patterns of
an organism
D. None of the above
5-9. Winterbottom’s sign is associated with
which of the following hemoflagellates?
(Objective 5-6)
A. Leishmania donovani
B. Trypanosoma brucei gambiense
C. Trypanosoma brucei rhodesiense
D. Trypanosoma cruzi
E. Leishmania tropica
5-10. The reduviid bug is the vector for transmitting
which of the following parasites?
(Objective 5-5)
A. Leishmania donovani
B. Trypanosoma brucei gambiense
C. Trypanosoma brucei rhodesiense
D. Trypanosoma cruzi
E. Leishmania tropica
5-11. Which of the following organisms causes
the less aggressive form of sleeping sickness?
(Objective 5-6)
A. Trypanosoma brucei gambiense
B. Trypanosoma cruzi
C. Trypanosoma brucei rhodesiense
D. Trypanosoma rangeli
5-12. Name three geographic regions in which
Leishmania mexicana complex can be
found. (Objective 5-2)
5-13. Describe Winterbottom’s sign. (Objective
5-1)
5-14. Name three reservoir hosts for T.b. rhodesiense.
(Objective 5-5)
5-15. Name three serologic testing methods used
for diagnosing T. cruzi infections. (Objective
5-12)
CASE STUDY 5-2
UNDER THE MICROSCOPE
Martin, a 19-year-old college student, recently returned
from a mission trip to Côte d’Ivoire in West Africa. He
presented in the emergency room with severe myalgia,
abdominal discomfort, diarrhea, vomiting, fever, chills,
sweats, enlarged cervical lymph nodes, and diminished
reactions to pain. A tender erythematous lesion was found
on the calf of his right leg.
Questions for Consideration
1. What are the two specimens that typically reveal the
morphologic forms of the responsible parasite? (Objective
5- 10F)
2. Which morphologic form do you suspect will be seen in
this case? (Objective 5-10B)
Continued