Question 1

HIV strains may differ by 10% within one person and by 35% in people across the globe.This is due to

Accepted Answer

A)   both cellular and antibody-mediated responses.
B)   the fact that HIV inserts its genome into the host genome.
C)   HIV's high rate of mutation.
D)   the fact that HIV targets T-cells.
E)   the fact that most people do not die from HIV infection.F) B) and C)
G) None of the above

Question 2

Infection with HIV is listed as the cause of death for an AIDS patient.

Accepted Answer

A) True 
 B)False

Question 3

How many different "lines" of antibiotics do we have against TB?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5 or moreF) B) and C)
G) B) and E)

Question 4

Unlike AIDS,both tuberculosis and malaria can be cured.

Accepted Answer

A) True 
 B)False

Question 5

There is no cure for AIDS.

Accepted Answer

A) True 
 B)False

Question 6

Legionnaires' disease emerged in 1976 due to

Accepted Answer

A)   exposure to wild monkeys.
B)   consuming horseshoe bats.
C)   mutation of the influenza virus.
D)   contamination of an air-conditioning system.
E)   abuse of antibiotics.F) A) and C)
G) B) and D)

Question 7

Why would an HIV test be negative within the first 2-3 weeks of an HIV infection?

Accepted Answer

A)   because there is no HIV virus in the blood
B)   because there are no detectable levels of HIV antibodies in the blood
C)   because there are no symptoms
D)   because the CD4 T-cell count is above 500 cells/mm3
E)   because there are no opportunistic infections yetF) A) and E)
G) A) and D) B

Question 8

Which of the following is not important for making HIV a retrovirus?

Accepted Answer

A)   reverse transcriptase
B)   RNA genome
C)   an envelope obtained from the host
D)   the production of viral DNAE) All of the above
F) A) and D)

Question 9

What are the symptoms of a TB infection?

Accepted Answer

A)   rash over the trunk, fever
B)   opportunistic infections, chronic diarrhea
C)   bad cough, chest pain, coughing up blood or sputum
D)   runny nose, sore throat, post-nasal drip
E)   lethargy, general malaiseF) B) and D)
G) B) and E)

Question 10

AIDS is the new name for what used to be called consumption.

Accepted Answer

A) True 
 B)False

Question 11

On average,how long has the immune system been able to successfully and effectively delay the onset of AIDS in 60% of people who are HIV infected?

Accepted Answer

A)   1 year
B)   2 years
C)   5 years
D)   10 years
E)   20 or more yearsF) A) and B)
G) B) and D)

Question 12

The uses of antibiotics does not cause antibiotic resistance,it just selects for those organisms that are already resistant.

Accepted Answer

A) True 
 B)False

Question 13

How does HIV know what cells to infect?

Accepted Answer

A)   It can infect any cell it comes in contact with.
B)   It can only infect cells on the surface of the body where the temperature is lower.
C)   It can only infect cells that are actively growing and dividing.
D)   It infects cells with a particular surface receptor.
E)   It only infects cells with that line the reproductive tract.F) B) and E)
G) A) and E) D

Question 14

When was the first documented case of AIDS in the United States?

Accepted Answer

A)   1884
B)   1924
C)   1959
D)   1969
E)   1982F) A) and C)
G) A) and E)

Question 15

How is Mycobacterium tuberculosis spread?

Accepted Answer

A)   via airborne droplets
B)   contaminated food or water
C)   sexual intercourse
D)   IV drug abuse
E)   blood transfusionsF) B) and E)
G) A) and E)

Question 16

In which phase of an HIV infection is the person typically asymptomatic?

Accepted Answer

A)   acute phase (
A)  
B)   chronic phase (
B)  
C)   AIDS (
C)  D) A) and B)
E) A) and C)

Question 17

What type of cells does HIV infect?

Accepted Answer

A)   helper T cells
B)   B cells
C)   liver cells
D)   epithelial cells
E)   basophilsF) C) and D)
G) A) and B)

Question 18

Streptococcus is now considered to be a reemerging pathogen.

Accepted Answer

A) True 
 B)False  True

Question 19

People can become resistant to antibiotics.

Accepted Answer

A) True 
 B)False

Question 20

In the "kitchen-sink model" for AIDS,what does the sink's drain represent?

Accepted Answer

A)   the destruction of CD4 T-cells by the virus
B)   the production of new CD4 T-cells
C)   the amplification of virus in the blood
D)   the destruction of virus by the immune system
E)   the wide variety of possible opportunistic infectionsF) C) and E)
G) C) and D)

Exam 25: Infectious Diseases Supplement

HIV strains may differ by 10% within one person and by 35% in people across the globe.This is due to

Correct AnswerverifiedShow Answer

Infection with HIV is listed as the cause of death for an AIDS patient.

Correct AnswerverifiedShow Answer

How many different "lines" of antibiotics do we have against TB?

Correct AnswerverifiedShow Answer

Unlike AIDS,both tuberculosis and malaria can be cured.

Correct AnswerverifiedShow Answer

There is no cure for AIDS.

Correct AnswerverifiedShow Answer

Legionnaires' disease emerged in 1976 due to

Correct AnswerverifiedShow Answer

Why would an HIV test be negative within the first 2-3 weeks of an HIV infection?

Correct AnswerverifiedB

Which of the following is not important for making HIV a retrovirus?

Correct AnswerverifiedShow Answer

What are the symptoms of a TB infection?

Correct AnswerverifiedShow Answer

AIDS is the new name for what used to be called consumption.

Correct AnswerverifiedShow Answer

On average,how long has the immune system been able to successfully and effectively delay the onset of AIDS in 60% of people who are HIV infected?

Correct AnswerverifiedShow Answer

The uses of antibiotics does not cause antibiotic resistance,it just selects for those organisms that are already resistant.

Correct AnswerverifiedShow Answer

How does HIV know what cells to infect?

Correct AnswerverifiedD

When was the first documented case of AIDS in the United States?

Correct AnswerverifiedShow Answer

How is Mycobacterium tuberculosis spread?

Correct AnswerverifiedShow Answer

In which phase of an HIV infection is the person typically asymptomatic?

Correct AnswerverifiedShow Answer

What type of cells does HIV infect?

Correct AnswerverifiedShow Answer

Streptococcus is now considered to be a reemerging pathogen.

Correct AnswerverifiedTrue

People can become resistant to antibiotics.

Correct AnswerverifiedShow Answer

In the "kitchen-sink model" for AIDS,what does the sink's drain represent?

Correct AnswerverifiedShow Answer

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B

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D

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True

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