Question 1

Which of the following antivirals is not used for treatment of HSV-1 and HSV-2?

Accepted Answer

A) interferon 
B) valacyclovir 
C) acyclovir 
D) famciclovir 
E) All of these choices are correct. 
A) interferon 
B) valacyclovir 
C) acyclovir 
D) famciclovir 
E) All of these choices are correct.

Question 2

Hepatitis B infection

Accepted Answer

A) has an incubation of 1 to 3 weeks. 
B) can be transmitted by the fecal-oral route. 
C) increases risk for hepatocellular cancer. 
D) is due to a flavivirus. 
E) All of these choices are correct. 
A) has an incubation of 1 to 3 weeks. 
B) can be transmitted by the fecal-oral route. 
C) increases risk for hepatocellular cancer. 
D) is due to a flavivirus. 
E) All of these choices are correct.

Question 3

The only body fluid that can transmit Hepatitis B virus is blood.

Accepted Answer

A) True 
 B)False

Question 4

Varicella-zoster virus

Accepted Answer

A) uses the respiratory epithelium as its portal of entry. 
B) becomes latent in dorsal root ganglia that serve specific dermatomes. 
C) has humans as its reservoir. 
D) causes chickenpox and shingles. 
E) All of these choices are correct. 
A) uses the respiratory epithelium as its portal of entry. 
B) becomes latent in dorsal root ganglia that serve specific dermatomes. 
C) has humans as its reservoir. 
D) causes chickenpox and shingles. 
E) All of these choices are correct.

Question 5

Chickenpox

Accepted Answer

A) is transmitted by inhalation of respiratory secretions. 
B) is transmitted by skin lesion contact or airborne spread of lesion material. 
C) has an incubation of 10 to 20 days. 
D) has fever, and vesicular rash that occurs in successive crops. 
E) All of these choices are correct. 
A) is transmitted by inhalation of respiratory secretions. 
B) is transmitted by skin lesion contact or airborne spread of lesion material. 
C) has an incubation of 10 to 20 days. 
D) has fever, and vesicular rash that occurs in successive crops. 
E) All of these choices are correct.

Question 6

Epstein-Barr virus has the following characteristics, except

Accepted Answer

A) it infects the respiratory epithelium. 
B) it is transmitted by direct oral contact and saliva. 
C) it multiplies and is latent in the parotid gland. 
D) it has a 30-50 day incubation. 
E) it can be transmitted by contaminated blood transfusions and organ transplants. 
A) it infects the respiratory epithelium. 
B) it is transmitted by direct oral contact and saliva. 
C) it multiplies and is latent in the parotid gland. 
D) it has a 30-50 day incubation. 
E) it can be transmitted by contaminated blood transfusions and organ transplants.

Question 7

Carriers of Hepatitis B virus are not common.

Accepted Answer

A) True 
 B)False

Question 8

Adenoviruses cause an inflammation of the conjunctiva and cornea called _____.

Accepted Answer

keratoconj

Question 9

Cytomegalovirus

Accepted Answer

A) is among the most common of human infections. 
B) is transmitted by saliva, respiratory mucus, milk, urine, semen, and cervical secretions. 
C) can be sexually transmitted. 
D) is commonly carried in the latent state. 
E) All of these choices are correct. 
A) is among the most common of human infections. 
B) is transmitted by saliva, respiratory mucus, milk, urine, semen, and cervical secretions. 
C) can be sexually transmitted. 
D) is commonly carried in the latent state. 
E) All of these choices are correct.

Question 10

Compare and contrast Hepatitis B virus, Hepatitis A virus, and Hepatitis C virus with regard to: a) virus characteristics, b) reservoir, c) transmission, d) incubation, e) symptoms, f) complications, and g) immunization.

Accepted Answer

a) Virus characteristics:
- Hepatitis B

Question 11

Adenoviruses are

Accepted Answer

A) nonenveloped, double-stranded, DNA viruses. 
B) transmitted by respiratory and ocular secretions. 
C) causes of conjunctivitis, common cold, and an acute hemorrhagic cystitis in children. 
D) causes of outbreaks among military recruits. 
E) All of these choices are correct. 
A) nonenveloped, double-stranded, DNA viruses. 
B) transmitted by respiratory and ocular secretions. 
C) causes of conjunctivitis, common cold, and an acute hemorrhagic cystitis in children. 
D) causes of outbreaks among military recruits. 
E) All of these choices are correct.

Question 12

Herpes simplex-2 (HSV-2) causes

Accepted Answer

A) genital lesions. 
B) intensely sensitive vesicles on or near the genitals. 
C) symptoms that include urethritis, cervicitis, and itching. 
D) infection in neonates that have contact with lesions in the birth canal. 
E) All of these choices are correct. 
A) genital lesions. 
B) intensely sensitive vesicles on or near the genitals. 
C) symptoms that include urethritis, cervicitis, and itching. 
D) infection in neonates that have contact with lesions in the birth canal. 
E) All of these choices are correct.

Question 13

Which is incorrect about warts?

Accepted Answer

A) They are caused by human papillomaviruses (HPV). 
B) They can be transmitted by direct contact or fomites. 
C) They include deep plantar warts of soles of the feet. 
D) They are usually cancerous. 
E) Freezing and laser surgery can be used for removal. 
A) They are caused by human papillomaviruses (HPV). 
B) They can be transmitted by direct contact or fomites. 
C) They include deep plantar warts of soles of the feet. 
D) They are usually cancerous. 
E) Freezing and laser surgery can be used for removal.

Question 14

Which is not correct about genital warts?

Accepted Answer

A) The etiological agent is the human polyoma virus JC. 
B) They are strongly associated with cancer of the penis. 
C) Treatment can involve laser surgery. 
D) It is the most common STD in the United States. 
E) They are strongly associated with cancer of the cervix. 
A) The etiological agent is the human polyoma virus JC. 
B) They are strongly associated with cancer of the penis. 
C) Treatment can involve laser surgery. 
D) It is the most common STD in the United States. 
E) They are strongly associated with cancer of the cervix.

Question 15

All of the following are true of human parvovirus B19, except

Accepted Answer

A) this virus can also cause severe disease in puppies. 
B) its genome consists of single-stranded DNA. 
C) this is one of the smallest human viruses. 
D) it causes a disease known as fifth's disease in young children. 
E) it may cross the placenta and cause severe damage to the fetus. 
A) this virus can also cause severe disease in puppies. 
B) its genome consists of single-stranded DNA. 
C) this is one of the smallest human viruses. 
D) it causes a disease known as fifth's disease in young children. 
E) it may cross the placenta and cause severe damage to the fetus.

Question 16

Inflammation of the liver with necrosis of the hepatocytes and swelling due to a mononuclear response is a disease called

Accepted Answer

A) hepatitis. 
B) jaundice. 
C) liver cancer. 
D) mononucleosis. 
A) hepatitis. 
B) jaundice. 
C) liver cancer. 
D) mononucleosis.

Question 17

Hepatitis B virus

Accepted Answer

A) is principally transmitted by blood. 
B) transmission risks include shared needles, anal intercourse, and heterosexual intercourse. 
C) is transmitted to the newborn from chronic carrier mothers. 
D) has many chronic carriers. 
E) All of these choices are correct. 
A) is principally transmitted by blood. 
B) transmission risks include shared needles, anal intercourse, and heterosexual intercourse. 
C) is transmitted to the newborn from chronic carrier mothers. 
D) has many chronic carriers. 
E) All of these choices are correct.

Question 18

Liver disease, such as hepatitis, can lead to bilirubin accumulation that causes a yellow tinge to skin and eyes called _____.

Accepted Answer

The answer of Liver disease, such as hepatitis, can lead...

Question 19

All of the following belong to the Herpesviridae, except

Accepted Answer

A) varicella-zoster virus. 
B) cytomegalovirus. 
C) variola virus. 
D) herpes simplex viruses. 
E) Epstein-Barr virus. 
A) varicella-zoster virus. 
B) cytomegalovirus. 
C) variola virus. 
D) herpes simplex viruses. 
E) Epstein-Barr virus.

Question 20

Infection with human polyomaviruses is most often asymptomatic in a healthy person.

Accepted Answer

A) True 
 B)False

Exam 24: Introduction to Viruses That Infect Humans: the Dna Viruses

Which of the following antivirals is not used for treatment of HSV-1 and HSV-2?

Hepatitis B infection

The only body fluid that can transmit Hepatitis B virus is blood.

Varicella-zoster virus

Chickenpox

Epstein-Barr virus has the following characteristics, except

Carriers of Hepatitis B virus are not common.

Adenoviruses cause an inflammation of the conjunctiva and cornea called _____.

Cytomegalovirus

Compare and contrast Hepatitis B virus, Hepatitis A virus, and Hepatitis C virus with regard to: a) virus characteristics, b) reservoir, c) transmission, d) incubation, e) symptoms, f) complications, and g) immunization.

Adenoviruses are

Herpes simplex-2 (HSV-2) causes

Which is incorrect about warts?

Which is not correct about genital warts?

All of the following are true of human parvovirus B19, except

Inflammation of the liver with necrosis of the hepatocytes and swelling due to a mononuclear response is a disease called

Hepatitis B virus

Liver disease, such as hepatitis, can lead to bilirubin accumulation that causes a yellow tinge to skin and eyes called _____.

All of the following belong to the Herpesviridae, except

Infection with human polyomaviruses is most often asymptomatic in a healthy person.

The Main Themes of Microbiology

The Chemistry of Biology

Tools of the Laboratory: Methods of Studying Microorganisms

A Survey of Prokaryotic Cells and Microorganisms

A Survey of Eukaryotic Cells and Microorganisms

An Introduction to Viruses

Microbial Nutrition, Ecology, and Growth

An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Microbial Genetics

Genetic Engineering: a Revolution in Molecular Biology

Physical and Chemical Agents for Microbial Control

Drugs, Microbes, Host--The Elements of Chemotherapy

Microbe-Human Interactions: Infection and Disease

An Introduction to Host Defenses and Innate Immunities

Adaptive, Specific Immunity and Immunization

Disorders in Immunity

Procedures for Identifying Pathogens and Diagnosing Infections

The Gram-Positive and Gram-Negative Cocci of Medical Importance

The Gram-Positive Bacilli of Medical Importance

The Gram-Negative Bacilli of Medical Importance

Miscellaneous Bacterial Agents of Disease

The Fungi of Medical Importance

The Parasites of Medical Importance

The Rna Viruses That Infect Humans

Environmental Microbiology

Applied and Industrial Microbiology

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