Microbiology, 2021

1090 25 • Review Questions
11. A patient at a clinic has tested positive for HIV.
Her blood contained 700/µL CD4 T cells and she
does not have any apparent illness. Her
infection is in which stage?
A. 1
B. 2
C. 3
12. Which of the following diseases is caused by a
helminth?
A. leishmaniasis
B. malaria
C. Chagas disease
D. schistosomiasis
13. Which of these is the most common form of
leishmaniasis?
A. cutaneous
B. mucosal
C. visceral
D. intestinal
14. Which of the following is a causative agent of
malaria?
A. Trypanosoma cruzi
B. Toxoplasma gondii
C. Plasmodium falciparum
D. Schistosoma mansoni
15. Which of the following diseases does not involve
an arthropod vector?
A. schistosomiasis
B. malaria
C. Chagas disease
D. babesiosis
Fill in the Blank
16. Vasculitis can cause blood to leak from
damaged vessels, forming purple spots called
________.
17. The lymph reenters the vascular circulation at
________.
18. Lyme disease is characterized by a(n) ________
that forms at the site of infection.
19. ________ refers to a loss of blood pressure
resulting from a system-wide infection.
20. ________ is a cancer that forms in patients with
HHV-4 and malaria coinfections.
Short Answer
26. How do lymph nodes help to maintain a
microbial-free circulatory and lymphatic
system?
27. What are the three forms of plague and how are
they contracted?
28. Compare epidemic and murine typhus.
29. Describe the progression of an HIV infection
over time with regard to the number of
circulating viruses, host antibodies, and CD4 T
cells.
21. ________ are transmitted by vectors such as
ticks or mosquitoes.
22. Infectious mononucleosis is caused by
________ infections.
23. The ________ mosquito is the biological vector
for malaria.
24. The kissing bug is the biological vector for
________.
25. Cercarial dermatitis is also known as ________.
30. Describe the general types of diagnostic tests
used to diagnose patients infected with HIV.
31. Identify the general categories of drugs used in
ART used to treat patients infected with HIV.
32. Describe main cause of Plasmodium falciparum
infection symptoms.
33. Why should pregnant women avoid cleaning
their cat’s litter box or do so with protective
gloves?
Access for free at openstax.org.