Question 1

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 yet 
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 yet B

Question 2

Streptococcus is now considered to be a reemerging pathogen.

Accepted Answer

A) True 
 B)False  True

Question 3

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. 
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. D

Question 4

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)  
A)  acute phase (
A)  
B)  chronic phase (
B)  
C)  AIDS (
C)

Question 5

Unlike AIDS,both tuberculosis and malaria can be cured.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

A)  1884 
B)  1924 
C)  1959 
D)  1969 
E)  1982 
A)  1884 
B)  1924 
C)  1959 
D)  1969 
E)  1982

Question 7

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 8

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

Question 9

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 infections 
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 infections

Question 10

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

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 or more 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5 or more

Question 11

What type of cells does HIV infect?

Accepted Answer

A)  helper T cells 
B)  B cells 
C)  liver cells 
D)  epithelial cells 
E)  basophils 
A)  helper T cells 
B)  B cells 
C)  liver cells 
D)  epithelial cells 
E)  basophils

Question 12

There is no cure for AIDS.

Accepted Answer

A) True 
 B)False

Question 13

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 malaise 
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 malaise

Question 14

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. 
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.

Question 15

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

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

People can become resistant to antibiotics.

Accepted Answer

A) True 
 B)False

Question 18

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. 
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.

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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 DNA 
A)  reverse transcriptase 
B)  RNA genome 
C)  an envelope obtained from the host 
D)  the production of viral DNA

Exam 25: Infectious Diseases Supplement

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

Streptococcus is now considered to be a reemerging pathogen.

How does HIV know what cells to infect?

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

Unlike AIDS,both tuberculosis and malaria can be cured.

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

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

How is Mycobacterium tuberculosis spread?

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

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

What type of cells does HIV infect?

There is no cure for AIDS.

What are the symptoms of a TB infection?

Legionnaires' disease emerged in 1976 due to

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?

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

People can become resistant to antibiotics.

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

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

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

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