Parasitology Exam
flagellates, amoebae, sporozoans, ciliates, opalinids
I. Identify the following organisms. (40 points)
1. Schizotrypanum, megacolon
2. nasal septum, amastigotes
3. trypanocidal antibody, ablastin
4. trophozoites, cysts, Flagyl, back packers plight
5. sometimes seen in urine sediment, Flagyl
6. 15N-25S longitude, Glossina morsitans
7. human colon, commensal, flagella, no cyst
8. heteroxenous, intracellular, Chiclets
9. post-dermal leishmanoid, Dum-Dum
10. artificial insemination concern in cattle, abortions
11. no reservoirs, Winterbottom
12. hexamitosis, galliforms
13. enterohepatitis, secondary infections with Clostridium
14. hyperparasitism, humans, often binucleate
15. continental drift hypothesis, multinucleate
16. kinetoplast, monoxenous
17. phlebotomine, Iraq, cutaneous
18. human colon, commensal, flagella, cyst
19. kissing, no cysts, flagella
20. Brahm Stoker, murrina
II. Briefly discuss three epidemiological factors involved in the spread of the following organisms. (12 points).
1. Trypanosoma cruzi
2. Leishmania donovani
3. Trypanosoma brucei gambiense
4. Giardia lamblia
III. Complete the chart. (25 points...do not use any twice)
ORGANISM SITE OF INFECTION VECTOR/NONE DISEASE GEOGRAPHICAL LOCATION DIAGNOSIS
Trichomonas vaginalis
blood, cerebrospinal fluid
Lutzomyia spp.
Kala-azar
cosmopolitan
xenodiagnosis
IV. Explain how evolution plays a role in host specificity. How are zoonoses related to the concept of host specificity? (10 points).