Question 1

Over the past couple of decades,most human rabies infection in the United States have been the result of contact with rabid

Accepted Answer

A)  dogs. 
B)  cats. 
C)  rats. 
D)  bats. 
E)  foxes. 
A)  dogs. 
B)  cats. 
C)  rats. 
D)  bats. 
E)  foxes. D

Question 2

Enteroviruses gain their name from the fact that they

Accepted Answer

A)  infect the digestive system. 
B)  are able to withstand the low pH of the stomach. 
C)  are transmitted by the fecal-oral route. 
D)  spread from the intestinal lining into the bloodstream to cause viremia. 
E)  remain latent inside cells in the stomach and intestines. 
A)  infect the digestive system. 
B)  are able to withstand the low pH of the stomach. 
C)  are transmitted by the fecal-oral route. 
D)  spread from the intestinal lining into the bloodstream to cause viremia. 
E)  remain latent inside cells in the stomach and intestines. C

Question 3

Which of the following is a member of the Flaviviridae that is NOT an arbovirus?

Accepted Answer

A)  eastern equine encephalitis virus 
B)  dengue virus 
C)  hepatitis C virus 
D)  hepatitis E virus 
E)  West Nile virus 
A)  eastern equine encephalitis virus 
B)  dengue virus 
C)  hepatitis C virus 
D)  hepatitis E virus 
E)  West Nile virus C

Question 4

Jonas Salk developed a(n)(attenuated/inactivated/subunit)polio vaccine in 1955.

Accepted Answer

The answer of Jonas Salk developed a(n)(attenuated/inactivated/subunit)polio vaccine in 1955....

Question 5

Which vaccine-preventable disease caused by an RNA virus has been nearly eradicated?

Accepted Answer

A)  measles 
B)  influenza 
C)  hantavirus 
D)  polio 
E)  rotavirus 
A)  measles 
B)  influenza 
C)  hantavirus 
D)  polio 
E)  rotavirus

Question 6

Arboviruses are transmitted by the (contact/enteric/vector)route.

Accepted Answer

The answer of Arboviruses are transmitted by the (contact/enteric/vector)route....

Question 7

Coronaviruses cause gastrointestinal disease.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following characteristics distinguishes coronaviruses from rhinoviruses?

Accepted Answer

A)  replicate best at 33°C 
B)  transmitted via respiratory droplets 
C)  cause common colds 
D)  envelope is present 
E)  virions contain single-stranded positive RNA 
A)  replicate best at 33°C 
B)  transmitted via respiratory droplets 
C)  cause common colds 
D)  envelope is present 
E)  virions contain single-stranded positive RNA

Question 9

Compare and contrast infectious hepatitis (hepatitis A)and hepatitis C in terms of agents,transmission,prevention,and disease outcomes.

Accepted Answer

Both viruses are unsegmented positive-se

Question 10

Rhinovirus infection is only treatable with over-the-counter medications (antihistamine,pain reliever,decongestant).

Accepted Answer

A) True 
 B)False

Question 11

Which of the following enzymes allows retroviruses to transcribe DNA from ssRNA?

Accepted Answer

A)  protease 
B)  DNA polymerase 
C)  integrase 
D)  reverse transcriptase 
E)  nuclease 
A)  protease 
B)  DNA polymerase 
C)  integrase 
D)  reverse transcriptase 
E)  nuclease

Question 12

Infection with (astrovirus/norovirus/rotavirus)is the most common cause of diarrhea in children worldwide.

Accepted Answer

The answer of Infection with (astrovirus/norovirus/rotavirus)is the most common cause...

Question 13

Which of the following statements about rhinoviruses is FALSE?

Accepted Answer

A)  They are limited to infecting the upper respiratory tract. 
B)  They are the only viruses that can cause a common cold. 
C)  They are extremely infectious. 
D)  They thrive at 33°C. 
E)  Person-to-person contact is the most common mode of transmission. 
A)  They are limited to infecting the upper respiratory tract. 
B)  They are the only viruses that can cause a common cold. 
C)  They are extremely infectious. 
D)  They thrive at 33°C. 
E)  Person-to-person contact is the most common mode of transmission.

Question 14

Some patients who have suffered from polio develop symptoms 30-40 years later in the form of

Accepted Answer

A)  repeated cold symptoms. 
B)  meningitis. 
C)  encephalitis. 
D)  crippling deterioration and dysfunction in the polio-affected muscles. 
E)  deterioration of the nerves that control polio-affected muscles. 
A)  repeated cold symptoms. 
B)  meningitis. 
C)  encephalitis. 
D)  crippling deterioration and dysfunction in the polio-affected muscles. 
E)  deterioration of the nerves that control polio-affected muscles.

Question 15

Public health scientists discover and become concerned about a new strain of RNA virus among farm animals,especially geese and pigs,in the Midwest.Each virion is composed of lipid,helical proteins,and multiple pieces of RNA.This new virus may be a(n)

Accepted Answer

A)  rotavirus. 
B)  influenza virus. 
C)  hantavirus. 
D)  dengue virus. 
E)  coronavirus. 
A)  rotavirus. 
B)  influenza virus. 
C)  hantavirus. 
D)  dengue virus. 
E)  coronavirus.

Question 16

Which of the following pairs is MISMATCHED?

Accepted Answer

A)  mumps; parotitis 
B)  rabies; hydrophobia 
C)  measles; Koplik's spots 
D)  parainfluenza virus; croup 
E)  hantavirus; paralysis 
A)  mumps; parotitis 
B)  rabies; hydrophobia 
C)  measles; Koplik's spots 
D)  parainfluenza virus; croup 
E)  hantavirus; paralysis

Question 17

The human T-lymphotropic virus 1 causes

Accepted Answer

A)  hairy cell leukemia. 
B)  adult acute T-cell lymphocytic leukemia. 
C)  Hodgkin's lymphoma. 
D)  hepatic cancer. 
E)  Burkitt's lymphoma. 
A)  hairy cell leukemia. 
B)  adult acute T-cell lymphocytic leukemia. 
C)  Hodgkin's lymphoma. 
D)  hepatic cancer. 
E)  Burkitt's lymphoma.

Question 18

HIV attaches to T cell and macrophages by means of an interaction between gp120 and a(n)(antibody/CD4/gp41)receptor.

Accepted Answer

The answer of HIV attaches to T cell and macrophages...

Question 19

The (hemagglutinin/neuraminidase/reverse transcriptase)of influenza viruses is both a virulence factor and a target for antiviral treatment.

Accepted Answer

The answer of The (hemagglutinin/neuraminidase/reverse transcriptase)of influenza viruses is both...

Question 20

Which of the following viruses can establish a chronic infection of the liver which may progress to liver cancer?

Accepted Answer

A)  hepatitis A 
B)  HTLV-1 
C)  hepatitis C 
D)  hepatitis D 
E)  hepatitis E 
A)  hepatitis A 
B)  HTLV-1 
C)  hepatitis C 
D)  hepatitis D 
E)  hepatitis E

Exam 25: Pathogenic RNA Viruses

Over the past couple of decades,most human rabies infection in the United States have been the result of contact with rabid

Enteroviruses gain their name from the fact that they

Which of the following is a member of the Flaviviridae that is NOT an arbovirus?

Jonas Salk developed a(n)(attenuated/inactivated/subunit)polio vaccine in 1955.

Which vaccine-preventable disease caused by an RNA virus has been nearly eradicated?

Arboviruses are transmitted by the (contact/enteric/vector)route.

Coronaviruses cause gastrointestinal disease.

Which of the following characteristics distinguishes coronaviruses from rhinoviruses?

Compare and contrast infectious hepatitis (hepatitis A)and hepatitis C in terms of agents,transmission,prevention,and disease outcomes.

Rhinovirus infection is only treatable with over-the-counter medications (antihistamine,pain reliever,decongestant).

Which of the following enzymes allows retroviruses to transcribe DNA from ssRNA?

Infection with (astrovirus/norovirus/rotavirus)is the most common cause of diarrhea in children worldwide.

Which of the following statements about rhinoviruses is FALSE?

Some patients who have suffered from polio develop symptoms 30-40 years later in the form of

Public health scientists discover and become concerned about a new strain of RNA virus among farm animals,especially geese and pigs,in the Midwest.Each virion is composed of lipid,helical proteins,and multiple pieces of RNA.This new virus may be a(n)

Which of the following pairs is MISMATCHED?

The human T-lymphotropic virus 1 causes

HIV attaches to T cell and macrophages by means of an interaction between gp120 and a(n)(antibody/CD4/gp41)receptor.

The (hemagglutinin/neuraminidase/reverse transcriptase)of influenza viruses is both a virulence factor and a target for antiviral treatment.

Which of the following viruses can establish a chronic infection of the liver which may progress to liver cancer?

A Brief History of Microbiology

The Chemistry of Microbiology

Cell Structure and Function

Microscopy, Staining, and Classification

Microbial Metabolism

Microbial Nutrition and Growth

Microbial Genetics

Recombinant DNA Technology

Controlling Microbial Growth in the Environment

Controlling Microbial Growth in the Body: Antimicrobial Drugs

Characterizing and Classifying Prokaryotes

Characterizing and Classifying Eukaryotes

Characterizing and Classifying Viruses, Viroids, and Prions

Infection, Infectious Diseases, and Epidemiology

Innate Immunity

Adaptive Immunity

Immunization and Immune Testing

Immune Disorders

Pathogenic Gram Positive Bacteria

Pathogenic Gram-Negative Cocci and Bacilli

Rickettsias, Chlamydias, Spirochetes, and Vibrios

Pathogenic Fungi

Parasitic Protozoa, Helminths, and Arthropod Vectors

Pathogenic DNA Viruses

Applied and Environmental Microbiology

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