Question 1

Corneal implants have been implicated in a few cases of

Accepted Answer

A)  rabies. 
B)  trypanosomiasis. 
C)  Creutzfeldt-Jakob. 
D)  scrapie. 
E)  rabies AND Creutzfeldt-Jakob. 
A)  rabies. 
B)  trypanosomiasis. 
C)  Creutzfeldt-Jakob. 
D)  scrapie. 
E)  rabies AND Creutzfeldt-Jakob.

Question 2

Prions are small single-stranded pieces of RNA.

Accepted Answer

A) True 
 B)False

Question 3

Viral central nervous system infections may result in

Accepted Answer

A)  meningitis. 
B)  encephalitis. 
C)  poliomyelitis. 
D)  rabies. 
E)  All of the choices are correct. 
A)  meningitis. 
B)  encephalitis. 
C)  poliomyelitis. 
D)  rabies. 
E)  All of the choices are correct.

Question 4

M. leprae may infect

Accepted Answer

A)  mangabey monkeys. 
B)  skunks. 
C)  iguanas. 
D)  armadillos. 
E)  mangabey monkeys AND armadillos. 
A)  mangabey monkeys. 
B)  skunks. 
C)  iguanas. 
D)  armadillos. 
E)  mangabey monkeys AND armadillos.

Question 5

Why would the Sabin oral polio vaccine need to be eliminated as we get closer and closer to eradication of the polio virus?

Accepted Answer

A)  Since it is a live, attenuated viral vaccine, there's always the chance it could revert back into a pathogenic state by mutation. This would introduce new strains still capable of causing the illness into human populations, thwarting elimination. 
B)  The Sabin vaccine is cheaper than the Salk (killed virus) vaccine, but it isn't as effective at producing a protective response. We'll need to shift to the more effective Salk vaccine worldwide eventually to complete the eradication process. 
C)  The Salk vaccine is far cheaper than the Sabin vaccine. To effectively eradicate polio, we'll need to shift all of our resources into the cheapest and easiest to deliver vaccine possible. That is the Salk vaccine. 
D)  The Sabin vaccine can only be administered to human beings. We need to vaccinate bird populations as well to effectively control the spread of polio. Birds are a natural reservoir for the virus. 
A)  Since it is a live, attenuated viral vaccine, there's always the chance it could revert back into a pathogenic state by mutation. This would introduce new strains still capable of causing the illness into human populations, thwarting elimination. 
B)  The Sabin vaccine is cheaper than the Salk (killed virus) vaccine, but it isn't as effective at producing a protective response. We'll need to shift to the more effective Salk vaccine worldwide eventually to complete the eradication process. 
C)  The Salk vaccine is far cheaper than the Sabin vaccine. To effectively eradicate polio, we'll need to shift all of our resources into the cheapest and easiest to deliver vaccine possible. That is the Salk vaccine. 
D)  The Sabin vaccine can only be administered to human beings. We need to vaccinate bird populations as well to effectively control the spread of polio. Birds are a natural reservoir for the virus.

Question 6

Why is it important to learn about rabies when only a few cases occur in the United States each year?

Accepted Answer

A)  The US isn't the entire world. Rabies might be more common in other areas, and it's important to understand due to its lethality. 
B)  The only reason why rabies isn't common in the US is due to our lack of interaction with animal carriers. We could very easily have an outbreak on our hands if we don't know the warning signs to watch for that we've learned about by studying the virus and disease. 
C)  Rabies can never be completely eliminated-it has too many different animal reservoirs/carriers. As such, we need to remain constantly aware of how to protect human populations, both by preventing and treating the illness. We can only do that by learning about it. 
D)  All of the above are correct. 
A)  The US isn't the entire world. Rabies might be more common in other areas, and it's important to understand due to its lethality. 
B)  The only reason why rabies isn't common in the US is due to our lack of interaction with animal carriers. We could very easily have an outbreak on our hands if we don't know the warning signs to watch for that we've learned about by studying the virus and disease. 
C)  Rabies can never be completely eliminated-it has too many different animal reservoirs/carriers. As such, we need to remain constantly aware of how to protect human populations, both by preventing and treating the illness. We can only do that by learning about it. 
D)  All of the above are correct.

Question 7

African sleeping sickness is transmitted by

Accepted Answer

A)  ticks. 
B)  black flies. 
C)  Aedes mosquitoes. 
D)  tsetse flies. 
A)  ticks. 
B)  black flies. 
C)  Aedes mosquitoes. 
D)  tsetse flies.

Question 8

The symptom at the site of an animal bite that suggests rabies as a possible diagnosis is

Accepted Answer

A)  inability to heal. 
B)  blue-green pus. 
C)  tingling or twitching. 
D)  festering without fever. 
A)  inability to heal. 
B)  blue-green pus. 
C)  tingling or twitching. 
D)  festering without fever.

Question 9

Stained smears of the surface of the eye might be useful in diagnosing

Accepted Answer

A)  influenza. 
B)  herpes. 
C)  polio. 
D)  rabies. 
A)  influenza. 
B)  herpes. 
C)  polio. 
D)  rabies.

Question 10

CNS diseases caused by fungus may occur in

Accepted Answer

A)  cancer patients. 
B)  diabetics. 
C)  AIDS patients. 
D)  immunosuppressed people. 
E)  All of the choices are correct. 
A)  cancer patients. 
B)  diabetics. 
C)  AIDS patients. 
D)  immunosuppressed people. 
E)  All of the choices are correct.

Question 11

The polio viruses usually enter the body through

Accepted Answer

A)  the oral route. 
B)  contaminated blood. 
C)  cuts in the skin. 
D)  the respiratory route. 
A)  the oral route. 
B)  contaminated blood. 
C)  cuts in the skin. 
D)  the respiratory route.

Question 12

The menigococcus attach to the mucus membrane via

Accepted Answer

A)  flagella. 
B)  pili. 
C)  cilia. 
D)  a capsule. 
A)  flagella. 
B)  pili. 
C)  cilia. 
D)  a capsule.

Question 13

The membranes that cover the surface of the brain and spinal cord are known as the

Accepted Answer

A)  neurolemma. 
B)  dura mater. 
C)  meninges. 
D)  collagen. 
A)  neurolemma. 
B)  dura mater. 
C)  meninges. 
D)  collagen.

Question 14

Humans acquire the arbovirus that causes epidemic encephalitis by

Accepted Answer

A)  the fecal-oral route. 
B)  human to human contact. 
C)  contaminated food. 
D)  the bite of an infected mosquito. 
A)  the fecal-oral route. 
B)  human to human contact. 
C)  contaminated food. 
D)  the bite of an infected mosquito.

Question 15

Intestinal botulism, especially in infants, has been linked to ingestion of

Accepted Answer

A)  seafood. 
B)  milk. 
C)  applesauce. 
D)  honey. 
A)  seafood. 
B)  milk. 
C)  applesauce. 
D)  honey.

Question 16

Death from botulism is usually due to respiratory paralysis.

Accepted Answer

A) True 
 B)False

Question 17

Inflammation of the membranes covering the CNS is called meningitis.

Accepted Answer

A) True 
 B)False

Question 18

The more severe form of African sleeping sickness is called the

Accepted Answer

A)  Gambian form. 
B)  Rhodesian form. 
C)  Guyanan form. 
D)  Brazilian form. 
A)  Gambian form. 
B)  Rhodesian form. 
C)  Guyanan form. 
D)  Brazilian form.

Question 19

The only known human pathogen that preferentially attacks the peripheral nerves is

Accepted Answer

A) N. meningitidis. 
B) polio virus. 
C) E. coli. 
D) M. leprae. 
A) N. meningitidis. 
B) polio virus. 
C) E. coli. 
D) M. leprae.

Question 20

The incubation period of leprosy is

Accepted Answer

A)  1 week. 
B)  3 weeks. 
C)  3 months. 
D)  3 or more years. 
A)  1 week. 
B)  3 weeks. 
C)  3 months. 
D)  3 or more years.

Exam 26: Nervous System Infections

Corneal implants have been implicated in a few cases of

Prions are small single-stranded pieces of RNA.

Viral central nervous system infections may result in

M. leprae may infect

Why would the Sabin oral polio vaccine need to be eliminated as we get closer and closer to eradication of the polio virus?

Why is it important to learn about rabies when only a few cases occur in the United States each year?

African sleeping sickness is transmitted by

The symptom at the site of an animal bite that suggests rabies as a possible diagnosis is

Stained smears of the surface of the eye might be useful in diagnosing

CNS diseases caused by fungus may occur in

The polio viruses usually enter the body through

The menigococcus attach to the mucus membrane via

The membranes that cover the surface of the brain and spinal cord are known as the

Humans acquire the arbovirus that causes epidemic encephalitis by

Intestinal botulism, especially in infants, has been linked to ingestion of

Death from botulism is usually due to respiratory paralysis.

Inflammation of the membranes covering the CNS is called meningitis.

The more severe form of African sleeping sickness is called the

The only known human pathogen that preferentially attacks the peripheral nerves is

The incubation period of leprosy is

Humans and the Microbial World

The Molecules of Life

Microscopy and Cell Structure

Dynamics of Prokaryotic Growth

Control of Microbial Growth

Metabolism: Fueling Cell Growth

The Blueprint of Life, From Dna to Protein

Bacterial Genetics

Biotechnology and Recombinant Dna

Identification and Classification of Prokaryotes

The Diversity of Prokaryotic Organisms

The Eukaryotic Members of the Microbial World

Viruses, Viroids and Prions

The Innate Immune Response

The Adaptive Immune Response

Host-Microbe Interactions

Immunologic Disorders

Applications of Immune Responses

Epidemiology

Antimicrobial Medications

Respiratory System Infections

Skin Infections

Wound Infections

Digestive System Infections

Genitourinary Infections

Blood and Lymphatic Infections

Hiv Disease and Complications of Immunodeficiency

Microbial Ecology

Environmental Microbiology: Treatment of Water, Wastes, and Polluted Habitats

Food Microbiology

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