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sure answers Flashcards

1
Q

which of the following childhood infections doesn’t cause rash?

a. Measles
b. Mumps
c. Rubella virus
d. B19

A

Mumps

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2
Q

An individual is infected with a virus that replicates causing clinical manifestations. the manifestations later subside; however, virus is not cleared from the body. Viral replications occurs continuously throughout life. which term describes this type of infection?
a. localized
b. acute
c. slow
d. latent
e. chronic

A

d. latent

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3
Q

After replication herpesviruses establish the latent stage by:

a. Residing viral RNA in the cytoplasm of the host cell
b. Integration its DNA in the cellular chromosome
c. Residing viral RNA in the nucleus of the host cell
d. Residing viral DNA as an episome in the nucleus of the host cell

A

Residing viral DNA as an episome in the nucleus of the host cell

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4
Q

All of the following viruses produce intranuclear inclusion bodies except

a. Varicella-Zoster virus
b. Adenovirus
c. Smallpox virus
d. Herpes simplex virus

A

Smallpox virus

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5
Q

Virus infecting the gastrointestinal tract has a segmented, double-stranded RNA genome and a double-shelled capsid. Which of the viral families does the described virus belong to?

a. Astroviridae
b. Adenoviridae
c. Caliciviridae
d. Coronavirida
e. Reoviridae

A

Reoviridae

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6
Q

all are the common characteristics of coronaviruses, except?
a. are distributed worldwide
b. possess cross-reactive antigens with influenza viruses
c. can cause gastroenteritis
d. contain the largest genomes among RNA viruses

A

possess cross-reactive antigens with influenza viruses

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7
Q

All of the following are a neurological complications for pediatric AIDS patients except?

a. Dementia
b. Behavioral changes
c. Encephalopathy
d. Seizures
e. Meningitis

A

Dementia

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8
Q

Which of the following can lead to the Giant-cell pneumonia?

a. Influenza in elderly
b. Rubella in non-human children
c. Parechovirus in AIDS patients
d. Measles in children with cellular immunodeficiency

A

Measles in children with cellular immunodeficiency

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8
Q

10 y/o boy has been admitted with pulmonary distress symptoms. He has a crusty to scared lesions on the body and a history of travelling to Central Africans countries. Which of the following viral family members can be the cause of the disease?

a.Picornaviridae
b.Coronaviridae
c.Parvoviridae
d.Poxvirus
e.Paramyxoviridae

A

Poxvirus

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9
Q

which of the following viruses cant replicate without the coinfecting virus?
a. Hepatitis E virus
b. Hepatitis D virus
c. chikungunya virus
d. parainfluenza virus
e. coronavirus

A

Hepatitis D virus

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10
Q

which of the is incorrect with regard to vaccines?

a. Oral live attenuated form of the enterovirus produces more effective protection
b. Live attenuated vaccines usually require booster doses for effective immunity to develop
c. Adenovirus can be used as a vector for chimeric vaccine production
d. Live attenuated vaccines are contraindicated in immunocompromised patients

A

Live attenuated vaccines usually require booster doses for effective immunity to develop

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11
Q

which area in the world has the highest prevalence of HIV/AIDS?
a. Sub-saharan Africa
b. southeast Asia
c. states of the former soviet union
d. indian subcontinent
w. the united states

A

Sub-saharan Africa

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12
Q

Patient has been recently diagnosed with HIV infection and the antiretroviral treatment has been administered. After a month his plasma viral blood was checked by using RT-PCR. The number of the viral particle wasn’t decreased below 10^6 copies/ml. What might be the reason for the high levels of viral particles in the blood?
a. patient was misdiagnosed
b. the test used is not specific and might have led to the false results
c. not enough time has passed for the viral load to be decreased
d. before administration of the antiviral drugs susceptibility of the strain wasn’t checked

A

before administration of the antiviral drugs susceptibility of the strain wasn’t checked

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13
Q

what determined the infecting site of the influenza virus?
a. dysbiosis of the local microbiota
b. pH of the bronchi
c. specific receptors found only on the respiratory epithelium
d. synthesis of the specific proteases by the respiratory epithelium
e. decreased local immunity or the airways

A

synthesis of the specific proteases by the respiratory epithelium

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14
Q

induction of passive-active immunity is useful in the prevention of which one of the following sets of two viral diseases?
a. Hepatitis B and rabies
b. Mumps and yellow fever
c. Rubella and measles
d. Hepatitis A and dengue
e. Influenza and varicella

A

Hepatitis B and rabies

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15
Q

which of the following agents infecting pregnant women wont lead to fetal damage or stillbirth?

a. Rubella
b. Toxoplasma gondil
c. Influenza virus
d. Cytomegalovirus
e. B19

A

Influenza virus

16
Q

Which Hepatitis virus is associated with increased lethality in pregnant women?

a. HBV
b. HAV
c. HEV
d. HCV

A

HEV

17
Q

Which of the cellular receptors are used by herpesviruses for infection?

a. proteoglycans
b. glycoproteins
c. glycosaminoglycans
d. Sphingolipids

A

glycosaminoglycans

18
Q

Which of the hepatitis viruses are mostly transmitted by sexual contact?

a. HBV
b. HAV
c. HCV
d. HDV
e. HEV

A

HBV

19
Q

Vaccinia virus has all of the following attributes except?
a. can cause severe localized or disseminated disease
b. has been in use for more than 300 years
c. is alive, attenuated monkeypox virus
d. can induce immunity that lasts only a few years
e. gene sequences coding for other viral proteins can be inserted into its genome

A

is alive, attenuated monkeypox virus

20
Q

Fusion of the infected epithelial cell membranes are found during the infection by :
a. Influenza virus
b. Respiratory syncytial virus
c. Measles virus
d. Parainfluenza virus Parainfluenza virus

A

Respiratory syncytial virus

21
Q

The disease not associated with the group B coxsackievirus is:
a. severe generalized disease of infants
b. meningoencephalitis
c. acute hemorrhagic conjunctivitis
d. Pericarditis

A

severe generalized disease of infants (not sure)

22
Q

This virus is the most important cause of gastroenteritis in infants and young children. It causes infections that are often severe and may be life-threatening, especially in infants.
a. Echovirus
b. Orbivirus
c. Rotavirus, group A
d. Norwalk virus
e. Parvovirus

A

Rotavirus, group A

23
Q

The 27-year-old pregnant mother of a child diagnosed with erythema infectiosum is concerned for the health of her fetus. What would be the most likely outcome of fetal infection with the virus causing her child’s disease?
a. Microcephaly
b. Patent ductus arteriosus
c. Hydrocephalus
d. Hydrops fetalis
e. Mental retardation

A

Hydrops fetalis

virology (4 decks)

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