Formative

Question 1

1. Listeriosis is an infection by Listeria monocytogenes, causing bacteremia and meningitis. Pregnancy-associated listeriosis can lead to fetal death. It is a notifiable infection, and by analysis of the data the CDC has determined that incidence of listeriosis in the US is 0.28 cases per 100,000 population. Listeriosis has a very similar incidence to:

a. Measles
b. Lyme disease
c. AIDS
d. Influenza

Answer 1

*a. Measles

Question 2

2. Below are four important types of bacterial virulence factors that we discussed last year. Which one is KNOWN to function as a virulence factor in urogenital Chlamydia?

A Type 3 secretion system
B Flagellum
C Exotoxin
D Capsule

Answer 2

*A Type 3 secretion system

Question 3

3. What in vitro culture system is most commonly used for Neisseria gonorrhoeae?

A Specially prepared nutrient agar plates
B Specially enriched liquid growth media
C Tissue culture
D There is no in vitro culture system for N. gonorrhoeae

Answer 3

*A Specially prepared nutrient agar plates

Question 4

4. A 38-year-old woman with many lifetime sexual partners is diagnosed with cervical cancer. This cancer is caused by a virus which

A, Expresses the oncogene myc

b. Has an RNA genome
c. Requires pre-existing immune abnormalities, such as HIV infection
d. Is closely related to a group of viruses that cause warts

Answer 4

*d. Is closely related to a group of viruses that cause warts

Question 5

5. A 15 year old girl comes to your office concerned regarding vaginal discharge. Her mother is in the waiting room. After taking the patient’s history and performing an exam, you tell the patient you are concerned she may have a sexually transmitted infection. The patient asks if you have to tell her mother. The best response in this situation is to say:

a) “Because you are a minor, I do need to inform your mother about the diagnosis and treatment.”
b) “The diagnosis is confidential, but I do need to inform your mother about the medical treatment.”
c) “The treatment is confidential, but I do need to inform your mother about the diagnosis.”
d) ”Both the diagnosis and treatment is confidential.”
e) ”Both the diagnosis and treatment is confidential but I will need to inform your partner.”

Answer 5

*d)”Both the diagnosis and treatment is confidential.”

Question 6

6. Which of the following is true?

a. HIV integrates into the host genome
b. HIV is a ds RNA virus that replicates in the cytoplasm of the cell
c. HIV replicates in only CD4+ T cells
d. HIV requires only a single receptor for viral entry
e. HIV virion has only virus nucleocapsid and viral RNA

Answer 6

a. HIV integrates into the host genome

Question 7

7. Below what CD4 count do HIV+ patients typically become vulnerable to the classic AIDS opportunistic infections (Candida, crypto, toxo, etc)?

A. 1000
B. 800
C. 600
D. 400

Answer 7

*D. 400