Question 1

The vast majority of new HIV infections are in people under the age of 15.

Accepted Answer

A) True 
 B)False

Question 2

What do MDR TB and MRSA have in common?

Accepted Answer

A)   Both are transmitted by mosquitoes.
B)   Both cause tuberculosis.
C)   Both are multidrug-resistant bacteria.
D)   Both have seen their numbers of infections decline dramatically in recent years.
E)   Both are viruses.F) D) and E)
G) None of the above

Question 3

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

Accepted Answer

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

Question 4

What are fimbriae,and what is their function?

Accepted Answer

A)   They are long, thin appendages that allow bacteria to be motile (move) .
B)   They are stiff fibers that allow bacteria to adhere to surfaces.
C)   They are elongated, hollow appendages that allow for the transfer of DNA.
D)   They are small, circular pieces of DNA that frequently contain genes for antibiotic resistance.
E)   They are a thick, gelatinous substance surrounding some bacterial cells that allow them to stick to surfaces and protect them from phagocytic white blood cells.F) C) and E)
G) A) and D)

Question 5

SARS is thought to have arisen in China due to the consumption of civets.

Accepted Answer

A) True 
 B)False

Question 6

The drugs that treat malaria can be used prophylactically,or before infection.

Accepted Answer

A) True 
 B)False  True

Question 7

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

Accepted Answer

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

Question 8

Most people with malaria exhibit chills and fevers every 48 to 72 hours.This is due to

Accepted Answer

A)   reinfection with new Plasmodium.
B)   the bursting of red blood cells in the body.
C)   the formation of Plasmodium gametes within the body.
D)   the fusion of the male and female Plasmodium gametes to form new organisms.
E)   waves of activity from the body's B and T cells.F) All of the above
G) A) and B)

Question 9

MRSA can be fatal.

Accepted Answer

A) True 
 B)False

Question 10

Which category of disease classification is described as having more cases than expected in a given period of time?

Accepted Answer

A)   epidemic
B)   outbreak
C)   pandemic
D)   opportunistic infection
E)   none of theseF) C) and D)
G) A) and B)

Question 11

How is Mycobacterium tuberculosis spread?

Accepted Answer

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

Question 12

List and describe the opportunistic diseases that individuals in category C of AIDS usually die from.

Accepted Answer

1.Pneumocystis jiroveci pneumonia: a fun...

Question 13

How many different "lines" of antibiotics against TB are there?

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   five or moreF) C) and D)
G) All of the above

Question 14

Why might an HIV test be negative within the first two to three weeks of an HIV infection?

Accepted Answer

A)   because there is no HIV 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) All of the above
G) B) and D)

Question 15

HIV strains may differ by 10% within one person and by 35% in people around 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) A) and B)
G) D) and E) C

Question 16

What types of cells does HIV infect?

Accepted Answer

A)   helper T cells and macrophages
B)   B cells and red marrow cells
C)   liver cells and cardiac muscle cells
D)   epithelial cells and eosinophils
E)   basophils and killer T cellsF) A) and E)
G) All of the above

Question 17

A disease is called an epidemic if people all over the world have the same disease.

Accepted Answer

A) True 
 B)False

Question 18

List and explain the events that occur during the reproductive cycle of an HIV virus.

Accepted Answer

1.Attachment: HIV binds to receptors on ...

Question 19

Of the following modes of HIV transmission,which is the least common mode and rare in many countries?

Accepted Answer

A)   transfusions of infected blood
B)   vaginal/rectal intercourse with an infected person
C)   needle sharing among IV drug users
D)   babies born to HIV-infected women
E)   oral-genital contact with an infected personF) C) and D)
G) B) and C)

Question 20

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

Accepted Answer

A) True 
 B)False  False

Exam 8: Infectious Diseases

The vast majority of new HIV infections are in people under the age of 15.

Correct AnswerverifiedShow Answer

What do MDR TB and MRSA have in common?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What are fimbriae,and what is their function?

Correct AnswerverifiedShow Answer

SARS is thought to have arisen in China due to the consumption of civets.

Correct AnswerverifiedShow Answer

The drugs that treat malaria can be used prophylactically,or before infection.

Correct AnswerverifiedTrue

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

Correct AnswerverifiedShow Answer

Most people with malaria exhibit chills and fevers every 48 to 72 hours.This is due to

Correct AnswerverifiedShow Answer

MRSA can be fatal.

Correct AnswerverifiedShow Answer

Which category of disease classification is described as having more cases than expected in a given period of time?

Correct AnswerverifiedShow Answer

How is Mycobacterium tuberculosis spread?

Correct AnswerverifiedShow Answer

List and describe the opportunistic diseases that individuals in category C of AIDS usually die from.

Correct Answerverified1.Pneumocystis jiroveci pneumonia: a fun...View AnswerShow Answer

How many different "lines" of antibiotics against TB are there?

Correct AnswerverifiedShow Answer

Why might an HIV test be negative within the first two to three weeks of an HIV infection?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedC

What types of cells does HIV infect?

Correct AnswerverifiedShow Answer

A disease is called an epidemic if people all over the world have the same disease.

Correct AnswerverifiedShow Answer

List and explain the events that occur during the reproductive cycle of an HIV virus.

Correct Answerverified1.Attachment: HIV binds to receptors on ...View AnswerShow Answer

Of the following modes of HIV transmission,which is the least common mode and rare in many countries?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedFalse

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True

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1.Pneumocystis jiroveci pneumonia: a fun...
View Answer

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C

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1.Attachment: HIV binds to receptors on ...
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False