Question 1

Individuals who have had chickenpox may develop (cancer/shingles/whitlows) later in life if they experience severe stress or immune suppression.

Accepted Answer

The answer of Individuals who have had chickenpox may develop...

Question 2

Skin lesions described as "dewdrops on rose petals" are characteristic of (chickenpox/shingles).

Accepted Answer

The answer of Skin lesions described as "dewdrops on rose...

Question 3

Which among the following are the largest DNA viruses that infect humans?

Accepted Answer

A)  Herpesviridae 
B)  Poxviridae 
C)  Adenoviridae 
D)  Papillomaviridae 
E)  Polyomaviridae

Question 4

Adenoviruses are so named because they infect only adenoid cells in humans.

Accepted Answer

A) True 
 B)False

Question 5

For protection from infection with genital herpes, condoms need to be used only when there is an active lesion.

Accepted Answer

A) True 
 B)False

Question 6

Hepatitis B virus replicates in liver cells and is released by (exocytosis/lysis), which contributes to the infection becoming chronic.

Accepted Answer

The answer of Hepatitis B virus replicates in liver cells...

Question 7

A patient is brought into the ER in a coma. Upon inspection, the physician sees evidence of many new tattoos, as well as yellowing of the skin and eyes. What is the most likely cause of the patient's condition?

Accepted Answer

The answer of A patient is brought into the ER...

Question 8

A young man goes to a clinic complaining of discomfort in his foot, especially when standing. Upon examination, the clinician observes raised bumps with rough surfaces on the sole of his foot. These lesions are consistent with

Accepted Answer

A)  shingles. 
B)  molluscum contagiosum. 
C)  erythema infectiosum. 
D)  warts. 
E)  whitlow.

Question 9

In infections with human herpesvirus (1/2/3/4), the virus becomes latent in B lymphocytes and suppresses apoptosis, thus providing one source of lymphomas associated with this virus.

Accepted Answer

The answer of In infections with human herpesvirus (1/2/3/4), the...

Question 10

Reactivation of latent in immunosuppressed individuals may result in disease of the brain known as progressive multifocal leukoencephalopathy (PLM).

Accepted Answer

A)  HHV- 6 
B)  B19 virus 
C)  JC virus 
D)  HHV- 8 
E)  BK virus

Question 11

Infection of the respiratory system by may develop into symptoms of a common cold.

Accepted Answer

A)  cytomegaloviruses 
B)  adenoviruses 
C)  polyomaviruses 
D)  papillomaviruses 
E)  parvoviruses

Question 12

Which of the following characteristics are common to Poxviridae, Herpesviridae, and Hepadnaviridae?

Accepted Answer

A)  double- stranded DNA in the virion 
B)  the presence of an envelope 
C)  a complex capsid 
D)  double- stranded DNA in the virion with a complex capsid 
E)  double- stranded DNA in the virion and the presence of an envelope

Question 13

The large size of poxviruses allows them to

Accepted Answer

A)  travel in droplets. 
B)  be easily isolated in infected cells. 
C)  attach to both animal and human cells. 
D)  be potential vectors for introduction of genetic material in vaccinations for gene therapy. 
E)  provoke a strong immune response in the host.

Question 14

Nearly everyone appears to be infected with polyomaviruses BK and JC by the age of 15.

Accepted Answer

A) True 
 B)False

Question 15

Erythema infectiosum is a dangerous but treatable disease.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following increases the risk of permanent liver damage with hepatitis B infection?

Accepted Answer

A)  coinfection with HHV- 6 
B)  coinfection with human herpesvirus 4 
C)  coinfection with hepatitis D virus 
D)  coinfection with human herpesvirus 4 and hepatitis D virus 
E)  coinfection with hepatitis D virus and HHV- 6

Question 17

Which of the following statements is true of both molluscum contagiosum and smallpox?

Accepted Answer

A)  The causative agent is a large dsDNA virus with a complex capsid. 
B)  A genital form of the disease exists. 
C)  The rash forms fluid- filled vesicles that become pustules. 
D)  It has a morality rate of 20%. 
E)  A vaccine is available.

Question 18

Human herpesvirus 4 (EBV) has been implicated as an etiological agent in some cases of Hodgkin's lymphoma.

Accepted Answer

A) True 
 B)False

Question 19

As the name implies, polyomaviruses are common causes of viral cancers in humans.

Accepted Answer

A) True 
 B)False

Question 20

A scientist discovers a new virus that causes mild respiratory disease in humans. He is able to isolate, purify, and characterize the virus. The virus preparation contains double- stranded DNA and no lipid. To which of the following virus families does this new virus likely belong?

Accepted Answer

A)  Herpesviridae 
B)  Papillomarviridae 
C)  Adenoviridae or Papillomaviridae 
D)  Adenoviridae 
E)  Herpesviridae or Poxviridae

Exam 24: Pathogenic Dna Viruses

Individuals who have had chickenpox may develop (cancer/shingles/whitlows) later in life if they experience severe stress or immune suppression.

Skin lesions described as "dewdrops on rose petals" are characteristic of (chickenpox/shingles).

Which among the following are the largest DNA viruses that infect humans?

Adenoviruses are so named because they infect only adenoid cells in humans.

For protection from infection with genital herpes, condoms need to be used only when there is an active lesion.

Hepatitis B virus replicates in liver cells and is released by (exocytosis/lysis), which contributes to the infection becoming chronic.

A patient is brought into the ER in a coma. Upon inspection, the physician sees evidence of many new tattoos, as well as yellowing of the skin and eyes. What is the most likely cause of the patient's condition?

A young man goes to a clinic complaining of discomfort in his foot, especially when standing. Upon examination, the clinician observes raised bumps with rough surfaces on the sole of his foot. These lesions are consistent with

In infections with human herpesvirus (1/2/3/4), the virus becomes latent in B lymphocytes and suppresses apoptosis, thus providing one source of lymphomas associated with this virus.

Reactivation of latent in immunosuppressed individuals may result in disease of the brain known as progressive multifocal leukoencephalopathy (PLM) .

Infection of the respiratory system by may develop into symptoms of a common cold.

Which of the following characteristics are common to Poxviridae, Herpesviridae, and Hepadnaviridae?

The large size of poxviruses allows them to

Nearly everyone appears to be infected with polyomaviruses BK and JC by the age of 15.

Erythema infectiosum is a dangerous but treatable disease.

Which of the following increases the risk of permanent liver damage with hepatitis B infection?

Which of the following statements is true of both molluscum contagiosum and smallpox?

Human herpesvirus 4 (EBV) has been implicated as an etiological agent in some cases of Hodgkin's lymphoma.

As the name implies, polyomaviruses are common causes of viral cancers in humans.

A scientist discovers a new virus that causes mild respiratory disease in humans. He is able to isolate, purify, and characterize the virus. The virus preparation contains double- stranded DNA and no lipid. To which of the following virus families does this new virus likely belong?