Question 1

Which two hepatitis viruses are generally acquired in a similar manner?

Accepted Answer

A)  HBA and HBV
B)  HBA and HBC
C)  HBV and HBCD) All of the above
E) A) and C)

Question 2

Which part of HIV facilitates attachment of HIV to TH cells?

Accepted Answer

A)  integrase
B)  GP-120
C)  fusion promoter
D)  protease
E)  capsid proteinsF) All of the above
G) D) and E)

Question 3

Which of the following is correct about polio?

Accepted Answer

A)  The disease is still affecting millions of people worldwide, mainly in Africa and India.
B)  The disease is spread by the respiratory route.
C)  The oral polio vaccine (OPV)  is not responsible for causing any polio.
D)  The Sabin vaccine is preferred over the Salk vaccine in the United States today.
E)  The virus multiplies in the mucosa of the intestines and is shed in feces.F) None of the above
G) B) and E)

Question 4

Which of the following is incorrect regarding Coronaviruses?

Accepted Answer

A)  One type can cause the common cold.
B)  One type can cause SARS.
C)  They are common animal viruses in pigs, dogs, cats, and poultry.
D)  There are no tests to confirm diagnosis.
E)  There is no specific treatment other than supportive care.F) C) and D)
G) B) and E) D

Question 5

The spikes of a paramyxovirus bind and fuse adjacent host cell membranes to produce a _____.

Accepted Answer

The answer of The spikes of a paramyxovirus bind and...

Question 6

Combination therapy for HIV is based on the assumption that it highly unlikely for multiple simultaneous mutations to cause resistance to each of the drugs used.

Accepted Answer

A) True 
 B)False

Question 7

Subacute sclerosing panencephalitis is caused by a prion.

Accepted Answer

A) True 
 B)False

Question 8

All of the following pertain to poliomyelitis, except

Accepted Answer

A)  summer outbreaks in the United States have been recently increasing.
B)  it is transmitted primarily by fecal contaminated water.
C)  it can be asymptomatic or mild with headache, sore throat, fever, and nausea.
D)  if virus enters the central nervous system, motor neurons can be infected and destroyed.
E)  there are effective vaccines to prevent polio.F) A) and E)
G) All of the above

Question 9

Which is incorrect about the MMR immunization?

Accepted Answer

A)  It contains attenuated viruses.
B)  It contains toxoids.
C)  It is given in early childhood.
D)  It provides protection against three different viral diseases.E) All of the above
F) A) and B) B

Question 10

Aedes mosquitoes are the vector involved in yellow fever, and dengue fever, and Zika virus transmission.

Accepted Answer

A) True 
 B)False

Question 11

All the following are correct about the polio vaccines, except

Accepted Answer

A)  the inactivated polio vaccine (IPV)  can occasionally revert to a neurovirulent strain.
B)  treatment for polio involves mainly alleviating pain and suffering.
C)  the virus is transmitted through the fecal-oral route.
D)  most infections do not result in paralysis.
E)  Dr.Jonas Salk developed the IPV vaccine in 1954.F) C) and D)
G) A) and B)

Question 12

Which is correct about influenza?

Accepted Answer

A)  Antigenic shift is a minor change in the viral strain.
B)  The virus is found in swine and cats.
C)  The virus is grown in poultry eggs for vaccines.
D)  Influenza A has a mortality rate of close to 35%.
E)  The virus binds to the intestinal mucosa.F) None of the above
G) D) and E)

Question 13

Orchitis and epididymitis is seen in young adult males as a complication of

Accepted Answer

A)  croup.
B)  mumps.
C)  influenza.
D)  measles (rubeola) .
E)  rubella.F) B) and D)
G) A) and E)

Question 14

The major agents responsible for the common cold are

Accepted Answer

A)  coxsackie viruses.
B)  rhinoviruses.
C)  influenza viruses.
D)  Caliciviruses.
E)  rotavirus.F) A) and B)
G) B) and E)

Question 15

Hydrophobia, the dumb phase, and Negri bodies in nervous tissue are all part of which disease?

Accepted Answer

A)  rabies
B)  dengue fever
C)  Norwalk virus
D)  subacute sclerosing panencephalitis (SSP
E)  
E)  Creutzfeldt-Jakob DiseaseF) B) and E)
G) C) and E)

Question 16

Symptoms of influenza include

Accepted Answer

A)  nasal discharge, mild fever, and absence of cough.
B)  fever, diarrhea, vomiting.
C)  fever, myalgia, sore throat, cough, nasal discharge.
D)  fever, sore throat, rash, cough.
E)  fever and pneumonia.F) A) and C)
G) None of the above

Question 17

A vaccine is currently available to prevent HIV infection.

Accepted Answer

A) True 
 B)False  False

Question 18

Rubella is

Accepted Answer

A)  caused by the measles virus (Morbillivirus) .
B)  a zoonosis.
C)  associated with congenital transmission causing miscarriage, deafness, and cardiac and mental defects.
D)  characterized by high fever, severe sore throat, severe cough, and myalgia.
E)  All of these choices are correct.F) C) and E)
G) D) and E)

Question 19

West Nile virus has the following characteristics, except

Accepted Answer

A)  it causes a hemorrhagic fever.
B)  it is an arbovirus.
C)  it is transmitted by a mosquito vector.
D)  it is typically a flu-like illness.
E)  it causes a severe encephalitis in less than 1% of infected persons.F) A) and E)
G) A) and D)

Question 20

Why were blood transfusions prior to 1985 more likely to be associated with Hepatitis C transmission than blood transfusions done since 1985?

Accepted Answer

A)  Since 1985, the incidence of Hepatitis C infection in the general population has been significantly lower than it was prior to 1985.
B)  Since 1985, donor blood is tested for the human immunodeficiency virus.
C)  Since 1985, the processing and storage of donor blood destroys any Hepatitis C virus in the blood.
D)  Since 1985, donor blood has been tested for either nonA, nonB Hepatitis virus or specifically for Hepatitis C virus.E) A) and D)
F) B) and C)

Exam 25: The Rna Viruses That Infect Humans

Which two hepatitis viruses are generally acquired in a similar manner?

Correct AnswerverifiedShow Answer

Which part of HIV facilitates attachment of HIV to TH cells?

Correct AnswerverifiedShow Answer

Which of the following is correct about polio?

Correct AnswerverifiedShow Answer

Which of the following is incorrect regarding Coronaviruses?

Correct AnswerverifiedD

The spikes of a paramyxovirus bind and fuse adjacent host cell membranes to produce a _____.

Correct AnswerverifiedShow Answer

Combination therapy for HIV is based on the assumption that it highly unlikely for multiple simultaneous mutations to cause resistance to each of the drugs used.

Correct AnswerverifiedShow Answer

Subacute sclerosing panencephalitis is caused by a prion.

Correct AnswerverifiedShow Answer

All of the following pertain to poliomyelitis, except

Correct AnswerverifiedShow Answer

Which is incorrect about the MMR immunization?

Correct AnswerverifiedB

Aedes mosquitoes are the vector involved in yellow fever, and dengue fever, and Zika virus transmission.

Correct AnswerverifiedShow Answer

All the following are correct about the polio vaccines, except

Correct AnswerverifiedShow Answer

Which is correct about influenza?

Correct AnswerverifiedShow Answer

Orchitis and epididymitis is seen in young adult males as a complication of

Correct AnswerverifiedShow Answer

The major agents responsible for the common cold are

Correct AnswerverifiedShow Answer

Hydrophobia, the dumb phase, and Negri bodies in nervous tissue are all part of which disease?

Correct AnswerverifiedShow Answer

Symptoms of influenza include

Correct AnswerverifiedShow Answer

A vaccine is currently available to prevent HIV infection.

Correct AnswerverifiedFalse

Rubella is

Correct AnswerverifiedShow Answer

West Nile virus has the following characteristics, except

Correct AnswerverifiedShow Answer

Why were blood transfusions prior to 1985 more likely to be associated with Hepatitis C transmission than blood transfusions done since 1985?

Correct AnswerverifiedShow Answer

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Which part of HIV facilitates attachment of HIV to T_H cells?

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D

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B

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False

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