Question 1

Although many viruses can cause meningitis, the most common viral cause is ______.

Accepted Answer

A)   enterovirus
B)   arbovirus
C)   herpes simplex
D)   arenavirus
E)   cytomegalovirusF) C) and D)
G) D) and E)

Question 2

Which of the following is not true of meningoencephalitis?

Accepted Answer

A)   The condition involves infection of both the brain and meninges.
B)   The mode of transmission is via respiratory droplets.
C)   The treatment for primary amoebic meningoencephalitis (PAM)  is mostly ineffective.
D)   The causative organisms are Naegleria fowleri and Acanthamoeba.E) C) and D)
F) A) and D)

Question 3

Up to 50% of persons who survived polio as children will suffer from post-polio syndrome later in
life.

Accepted Answer

A) True 
 B)False

Question 4

Cryptococcus neoformans is a ______.

Accepted Answer

A)   gram-negative bacterium
B)   fungus
C)   gram-positive bacterium
D)   prionE) A) and B)
F) All of the above

Question 5

Prions can be destroyed by autoclaving.

Accepted Answer

A) True 
 B)False

Question 6

Meningococci initially colonize the ______.

Accepted Answer

A)   oral mucosa
B)   lacrimal ducts
C)   nasopharynx
D)   Eustachian tubeE) B) and C)
F) A) and C)

Question 7

Which of the following diseases exhibits the highest mortality rate?

Accepted Answer

A)   La Crosse encephalitis
B)   Jamestown Canyon encephalitis
C)   Eastern equine encephalitis
D)   West Nile encephalitisE) C) and D)
F) None of the above C

Question 8

Subacute sclerosing panencephalitis is caused by a prion.

Accepted Answer

A) True 
 B)False  False

Question 9

Which of the following is not a prion disease?

Accepted Answer

A)   Scrapie
B)   Bovine spongiform encephalopathy
C)   Creutzfeldt-Jacob disease
D)   Subacute sclerosing panencephalitisE) A) and D)
F) A) and C)

Question 10

Although prion infectious agents are more closely related to viruses than any other kind of infectious agents, there are still some major differences between the two. Which statement describes a major difference?

Accepted Answer

A)   Viral infections can always be treated and cured, whereas prion diseases cannot.
B)   Viruses can be transmitted by animal to human or human to human, but prions are always human to human transmission.
C)   Prions are not destroyed by heat, but viruses can be inactivated by heat.
D)   Viruses do not contain protein, whereas prions do.E) All of the above
F) A) and B)

Question 11

The best defense against arboviruses is ______.

Accepted Answer

A)   vector control
B)   prophylactic rifampin
C)   vaccination
D)   prompt treatment with acyclovirE) B) and C)
F) None of the above

Question 12

Cerebrospinal ?uid is found in the ______.

Accepted Answer

A)   pia mater
B)   dura mater
C)   subarachnoid space
D)   arachnoid mater
E)   All of the choices are correct.F) A) and B)
G) C) and E)

Question 13

In rabies, spasms of muscles for swallowing lead to a fear of water.

Accepted Answer

A) True 
 B)False

Question 14

Neonatal meningitis is most commonly transmitted by ______.

Accepted Answer

A)   exposure from other infants
B)   hospital personnel
C)   exposure in the birth canal
D)   transplacental infection
E)   breastfeedingF) None of the above
G) B) and D) C

Question 15

Which of the following statements about rabies is incorrect?

Accepted Answer

A)   Wild populations of bats, skunks, raccoons, cats, and canines are primary reservoirs.
B)   The average incubation period in human is one week.
C)   Rabies is a zoonotic disease.
D)   Transmission can involve bites, scratches, and inhalation.
E)   Symptoms include anxiety, agitation, muscle spasms, convulsions, and paralysis.F) B) and E)
G) A) and D)

Question 16

Treatment of an animal bite for possible rabies includes _______.

Accepted Answer

A)   debridement
B)   washing the bite with soap or detergent
C)   infusing the wound with human rabies immune globulin (HRIG) 
D)   postexposure vaccination
E)   All of the choices are correct.F) B) and D)
G) C) and E)

Question 17

Which of the following is not a causative agent of acute encephalitis?

Accepted Answer

A)   Toxoplasma gondii
B)   Varicella-zoster virus
C)   Arbovirus
D)   JC virus
E)   Herpes simplex virusF) A) and B)
G) B) and E)

Question 18

Viral meningitis normally requires aggressive antiviral treatment.

Accepted Answer

A) True 
 B)False

Question 19

What organism is the main reservoir and host for Toxoplasma gondii?

Accepted Answer

A)   Dog
B)   Mosquito
C)   Cat
D)   Raccoon
E)   MouseF) C) and D)
G) B) and E)

Question 20

Which of the following statements regarding poliomyelitis is incorrect?

Accepted Answer

A)   It can be asymptomatic or mild with headache, sore throat, fever, and nausea.
B)   If the virus enters the central nervous system, motor neurons can be infected and destroyed.
C)   It is caused by poliovirus (genus Enterovirus) .
D)   Summer outbreaks in the U.S. have been increasing in frequency.
E)   The virus is transmitted by contaminated water.F) B) and E)
G) A) and C)

Exam 19: Infectious Diseases Affecting the Nervous System

Although many viruses can cause meningitis, the most common viral cause is ______.

Correct AnswerverifiedShow Answer

Which of the following is not true of meningoencephalitis?

Correct AnswerverifiedShow Answer

Up to 50% of persons who survived polio as children will suffer from post-polio syndrome later in life.

Correct AnswerverifiedShow Answer

Cryptococcus neoformans is a ______.

Correct AnswerverifiedShow Answer

Prions can be destroyed by autoclaving.

Correct AnswerverifiedShow Answer

Meningococci initially colonize the ______.

Correct AnswerverifiedShow Answer

Which of the following diseases exhibits the highest mortality rate?

Correct AnswerverifiedC

Subacute sclerosing panencephalitis is caused by a prion.

Correct AnswerverifiedFalse

Which of the following is not a prion disease?

Correct AnswerverifiedShow Answer

Although prion infectious agents are more closely related to viruses than any other kind of infectious agents, there are still some major differences between the two. Which statement describes a major difference?

Correct AnswerverifiedShow Answer

The best defense against arboviruses is ______.

Correct AnswerverifiedShow Answer

Cerebrospinal ?uid is found in the ______.

Correct AnswerverifiedShow Answer

In rabies, spasms of muscles for swallowing lead to a fear of water.

Correct AnswerverifiedShow Answer

Neonatal meningitis is most commonly transmitted by ______.

Correct AnswerverifiedC

Which of the following statements about rabies is incorrect?

Correct AnswerverifiedShow Answer

Treatment of an animal bite for possible rabies includes _______.

Correct AnswerverifiedShow Answer

Which of the following is not a causative agent of acute encephalitis?

Correct AnswerverifiedShow Answer

Viral meningitis normally requires aggressive antiviral treatment.

Correct AnswerverifiedShow Answer

What organism is the main reservoir and host for Toxoplasma gondii?

Correct AnswerverifiedShow Answer

Which of the following statements regarding poliomyelitis is incorrect?

Correct AnswerverifiedShow Answer

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False

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C

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