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specific virology > pt 2 > Flashcards

pt 2 Flashcards

1
Q

The spring viraemia of carp virus is a thermosensitive mutant

a. True
b. False

A

True

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2
Q

Which statement is true?

a. Molluscipoxviruses infect molluscs
b. Yatapoxiviruses infect bats
c. Suipoxviruses are vectored by mosquitoes
d. Leporipoxviruses induce tumour formation

A

d. Leporipoxviruses induce tumour formation

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3
Q

Please, mark, which statement is true.

a. Certain anelloviruses may cause apathogenic infection
b. Anelloviruses contain circular DNA
c. Anelloviruses are euryxen pathogens
d. Anelloviruses cause anaemia in swine

A

a. Certain anelloviruses may cause apathogenic infection

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4
Q

Birnaviruses

a. Have single-stranded DNA genome
b. Are causing reproductive problems in cattle c. Are euryxen viruses
d. Have strong resistance in the environment

A

d. Have strong resistance in the environment

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5
Q

Which statement is true?

a. Flaviviruses have an icosahedral capsid
b. Flaviviruses are resistant to detergents
c. Flaviviruses cause intranuclear inclusion body formation in cell culture
d. Flaviviruses have a segmented genome

A

a. Flaviviruses have an icosahedral capsid

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6
Q

Which statement is false? Herpesviruses…

a. Are related antigenically within genera
b. Are sensitive to detergents
c. Are never tumour formatting
d. Are enveloped viruses

A

c. Are never tumour formatting

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7
Q

Which statement is false?

a. The virions of poxviruses are larger than most of the other viruses of domestic animals
b. The virions of poxvirions have complex symmetry
c. The genome of poxviruses consists of 3 segments
d. Poxviruses replicate in the cytoplasm

A

c. The genome of poxviruses consists of 3 segments

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8
Q

The virions of filoviruses

a. Take ribosomes from the host cells b. Are pleomorphic
c. Are bullet shaped
d. Have helical symmetry

A

d. Have helical symmetry

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9
Q

Which statement is false?

a. The core and matrix proteins of orthomyxoviruses are conservative genes.
b. In birds all influenza A serotypes can be detected
c. The envelope proteins of orthomyxoviruses are hypervariable genes
d. Influenza type C is transmitted by mosquitoes

A

d. Influenza type C is transmitted by mosquitoes

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10
Q

Which statement is false?

a. Zoonotic spread is common among papillomaviruses of mammals
b. Zoonotic spread is common among astroviruses of mammals
c. Zoonotic spread is common among arteriviruses of mammals
d. Zoonotic spread is common among hepeviruses of mammals

A

d. Zoonotic spread is common among hepeviruses of mammals

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11
Q

Which statement is true?

a. Reoviruses are enveloped
b. Among reoviridae family only rotaviruses can be propagated in vitro
c. Reoviruses usually cause diarrhoea
d. Reoviruses have double capsid

A

d. Reoviruses have double capsid

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12
Q

Which statement is false?

a. The canine herpesvirus causes generalized infection in pregnant dogs
b. Herpesvirus can infect fish
c. Bovine herpesviruses cause respiratory and genital infections
d. The feline herpesviruses cause respiratory disease

A

c. Bovine herpesviruses cause respiratory and genital infections

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13
Q

Which statement is true?

a. The mouse sarcoma virus is competent in multiplication and has a viral onc gene.
b. The feline sarcoma virus is competent in multiplication and has a viral onc gene
c. The Rous-sarcoma virus is competent in multiplication and has a viral onc gene
d. The avian sarcoma virus is competent in multiplication and has a viral onc gene

A

c. The Rous-sarcoma virus is competent in multiplication and has a viral onc gene

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14
Q

Coronaviruses

a. Propagate only in dividing cells
b. Do not show serological cross reactions
c. Synthesize subgenomic mRNAs for structural proteins
d. Cause disease exclusively in birds

A

c. Synthesize subgenomic mRNAs for structural proteins

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15
Q

. The alpha, beta and gamma herpesvirinae subfamily is differentiated

a. By the replication time
b. By the latency site
c. By the cytopathetic effects
d. Considering all the details above

A

d. Considering all the details above

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16
Q

Which statement is true?

a. The distemper virus can infect large feline species
b. The distemper virus persist in the urine bladder and the brain
c. Both A and B are true
d. Both A and B are false

A

c. Both A and B are true

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17
Q
  1. Which statement is false?
    a. Enteroviruses cause disease exclusively in human.
    b. Teschoviruses infect swine
    c. Aphtoviruses have euryxen host range
    d. Rhinoviruses are thermosensitive mutants
A

a. Enteroviruses cause disease exclusively in human.

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18
Q
  1. Lumpy skin disease is mainly seen in cattle and wild ruminants
    a. False
    b. True
A
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18
Q
  1. Lumpy skin disease is mainly seen in cattle and wild ruminants
    a. False
    b. True
A
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18
Q
  1. Lumpy skin disease is mainly seen in cattle and wild ruminants
    a. False
    b. True
A

True

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19
Q

Birnaviruses

a. Are enveloped
b. Contain diploid RNA type nucleic acid
c. Cause immunosuppression in chicken
d. Have low resistance in the environment

A

c. Cause immunosuppression in chicken

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20
Q

. Influenza D viruses typically cause disease in

a. Humans and seasl
b. Ducks and geese
c. Pigs and cows
d. Humans and pigs

A

c. Pigs and cows

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21
Q

Prions can be detected by

a. CF test
b. PCR
c. HA assay
d. ELISA

A

d. ELISA

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22
Q

Polyomaviruses

a. Persist in the lymphoid tissue
b. Integrate into the cellular genome
c. Cause per os infection
d. Cannot be propagated in cell cuture

A

b. Integrate into the cellular genome

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23
Q

Circoviruses cause abortion in swine

a. True
b. False

A

false

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24
Q

Please, mark, which statement is true!

a. Novirhaboviruses infect mammals
b. The bovine ephemeral fever virus is an arbovirus
c. The rabies virus is stenoxen
d. The rabies virus causes cell-bound viraemia

A

b. The bovine ephemeral fever virus is an arbovirus

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25
Q

All of the viruses classified in the Bunyavirales
order…
a. Are very sensitive to environmental conditions b. Are arboviruses
? c c. Are zoonotic

A

Are zoonotic

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26
Q

Picoronaviruses use their genome as Mrna

a. True
b. False

A

true

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27
Q

The African swine fever virus

a. Has low resistance in the environment
b. Causes haemadsorption
c. Causes a disease that is preventable with a vaccine d. Is shed by the faeces

A

b. Causes haemadsorption

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28
Q

The bluetongue virus may cause abortion in sheep.

a. True
b. False

A

False

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29
Q

Hepeviruses

a. Cause the inflammation of the gill in salmons
b. Are sensitive to cold temperature
c. Cause cell rounding in tissue culture
d. Are only present in asia

A

b. Are sensitive to cold temperature

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30
Q

. The rift-valley fever virus may cause abortion in sheep

a. False
b. True

A

True

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31
Q

Adenoviruses

a. Zoonotic viruses
b. Cause egg development problems in hens
c. Are harboured mainly by bats
d. Infect only terrestrial animals

A

b. Cause egg development problems in hens

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32
Q

Retroviruses

a. Have binal capsid symmetry
b. Have variable surface antigens
c. Are not transmitted vertically
d. Always cause tumours

A

b. Have variable surface antigens

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33
Q

Which statement is false?

a. The chikungunya virus causes joint pain in human
b. The O’nyong nyong virus causes rash and fever in human
c. The Getah virus causes encephalitis in human
d. The Ross River causes rash and fever in human

A

c. The Getah virus causes encephalitis in human

34
Q

Which statement is true?

a. Flaviviruses can be identified by the characteristic CPE they cause
b. Some flaviviruses are weak antigens
c. Within flaviviridae genera cross-reactions are detected.
d. Flaviviruses are resistant to environmental conditions

A

c. Within flaviviridae genera cross-reactions are detected.

35
Q

Thogotoviruses

a. Are present in the Scandinavian countries b. Cause abortion in horse
c. Are transmitted by ticks
d. Cause anaemia in salmon

A

c. Are transmitted by ticks

36
Q

Which statement is false?

a. Bunyaviruses may be transmitted by arthropod vectors
b. Togaviruses may be transmitted by arthropod vectors
c. Arenaviruses may be transmitted by arthropod vectors

A

c. Arenaviruses may be transmitted by arthropod vectors

37
Q

The African swine fever virus

a. Has restricted host range
b. Is transmitted by air
c. Is isolated in embryonated egg d. Causes self-limiting infection

A

a. Has restricted host range

38
Q

Which is not a notifiable disease? a. Bluetongue

b. African horse sickness
c. Horse encephalosis
d. Epizootic haemorrhagic disease

A

b. African horse sickness

39
Q

Papillomaviruses

a. Assemble in keratinized cells
b. Can be isolated in primary cell cultures
c. Cause only benign tumours
d. Are zoonotic viruses

A

a. Assemble in keratinized cells

40
Q

Please, mark, which statement is true.

a. Certain viruses of the Lyssavirus genus infect fishes
b. The infection with rhabdoviruses does not trigger an immune reaction
c. Virions of rhabdoviruses of animals are bullet-shaped
d. The genome of rhabdoviruses is segmented –ssRNA

A

c. Virions of rhabdoviruses of animals are bullet-shaped

d. The genome of rhabdoviruses is segmented –ssRNA

41
Q
  1. Certain orthomyxoviruses cause infection in fish a. True
    b. False
A

false

42
Q
  1. The lymphocytic choriomeningitis virus infects
    a. Water birds
    b. Dogs and cats
    c. Sheep and goat d. Humans
A

humans

43
Q

. Anelloviruses

a. Are enveloped
b. Are inactivated quickly in an acidic environment c. Are weak antigens
d. Can cause germinative infection

A

d. Can cause germinative infection

44
Q

West nile fever is present only in Africa a. False

b. True

A

false

45
Q
  1. Adenoviruses are transmitted by mosquitoes

a. False b. True

A

False

46
Q

Arteriviruses

a. Cause disase exclusively in birds
b. Show serological cross-reactions within the family
c. Propagate only in diving cells
d. Synthesize subgenomic mRNAs for structural proteins

A

d. Synthesize subgenomic mRNAs for structural proteins

47
Q

Avian infectious bronchitis may cause a. Egg deformation

b. Gout
c. Breathing difficulty
d. Any of the signs listed above

A

d. Any of the signs listed above

48
Q
  1. Avastroviruses cause anaemia in chicken a. True

b. False

A

False

49
Q

Which statement is false?

a. Retroviruses integrate into the host cell genome
b. Retroviruses genome is a dsRNa
c. Retroviruses are enveloped
d. The retroviruses cause lifelong infections

A

. Retroviruses genome is a dsRNa

50
Q

The ebola virus causes a disease of high mortality a. False

b. True

A

True

51
Q

Poxviruses

a. Are not immunogenic
b. Usually cause skin lesions
c. Are very sensitive in the environment
d. Cause nuclear inclusion bodies

A

b. Usually cause skin lesions

52
Q

Poxviruses

a. Are not immunogenic
b. Usually cause skin lesions
c. Are very sensitive in the environment
d. Cause nuclear inclusion bodies

A

b. Usually cause skin lesions

53
Q

The surface receptor protein of influenza viruses is the a. Spike protein

b. Fusion protein
c. Hemagglutinin
d. Fiber

A

c. Hemagglutinin

54
Q

It is transmitted by mosquitoes a. The monkey pox

b. The myxomatosis
c. The camelpox
d. The swinepox

A

b. The myxomatosis

55
Q

The infectioud bovine rhinotracheitis virus is zoonotic

a. False
b. True

A

False

56
Q

In india, the maedi-visna virus is transmitted by ticks

a. False b. True

A

False

57
Q

Orthopneumoviruses infect poultry a. False

b. True

A

False

58
Q

Paramyxoviruses

a. Can cause myxomatosis in swine
b. Do not cause cytopathic effects in cells c. Cause paralysis in swine
d. Are sensitive to lipid solvents

A

d. Are sensitive to lipid solvents

59
Q

Which statement is false?

a. The RHDV-1 infects rabbit and hare too
b. The rabbit haemorrhagic disease vaccine is produced by experimental animal infection
c. The rabbit haemorrhagic disease is a notifiable disease
d. The RHDV-2 infects rabbit and hare too

A

a. The RHDV-1 infects rabbit and hare too

60
Q

. Avastroviruses cause the inflammation of bursa
Fabricii in chicken
a. False
b. True

A

a. False

61
Q

Which statement is true?

a. In avulavirinae subfamily we can find only pathogenic viruses
b. The Newcastle disease virus causes abortion in sheep
c. Paramyxoviruses have good resistance in the environment
d. Certain paramyxoviruses cause disease in fish

A

a. In avulavirinae subfamily we can find only pathogenic viruses

62
Q

Horse herpesviruses cause

a. Abortion
b. Respiratory disease
c. None of the above
d. Any of the above

A

d. Any of the above

63
Q

Arenaviruses

a. Cannot infect humans
b. Usually cause gastroenteritis
c. Are pleomorphic viruses
d. Use reverse transcriptase for their replication

A

c. Are pleomorphic viruses

64
Q

Which statement is false?

a. SVD clinical signs are similar to FMD
b. Tremoviruses cause disease in young chickens
c. Kobuviruses cause hepatitis in ducks
d. FMD virus has several serotypes

A

c. Kobuviruses cause hepatitis in ducks

65
Q

Influenza C viruses typically cause disease in a. Horses and dogs

b. Humans and pigs
c. Ducks and geese
d. Humans and seals

A

b. Humans and pigs

66
Q

. Which statement is false?

a. Coronaviruses cause characteristic CPE in cell cultures
b. Coronaviruses are host specific
c. Within coronavirus genera we can detect serological cross reactions
d. Host change is frequent in the case of coronaviruses

A

a. Coronaviruses cause characteristic CPE in cell cultures

67
Q

Which statement is false?

a. Pegiviruses cause chronic hepatitis
b. Pestiviruses are transmitted by mosquitoes c. Flaviviruses can be inactivated by detergents
d. Hepaciviruses are zoonotic

A

a. Pegiviruses cause chronic hepatitis

68
Q

Which statement is false?
a. Filoviruses cause lethal disease with a rapid course
The filoviruses are sensitive to environmental conditions
c. Filoviruses are transmitted by mosquitoes
d. Filoviruses are good antigens

A

c. Filoviruses are transmitted by mosquitoes

69
Q

Which is not a reovirus?

a. African horse sickness virus b. Ibaraki disease virus
c. Bluetongue virus
d. Gumboro disease virus

A

d. Gumboro disease virus

70
Q

Which statement is false? Herpesviruses…

a. Can be detected by haemagglutination test
b. Can cause syncytium in cell cultures
c. Hide as an episome or integrated into the cellular genome
d. Can be isolated by co cultivation

A

a. Can be detected by haemagglutination test

71
Q

Infectious prions

a. Are strong antigens in the host organisms
b. Are very sensitive to the higher temperature
c. Are resistant to cellular proteases
d. Contain only +ssRNA

A

. Are resistant to cellular proteases

72
Q

Which virus is not transmitted by ticks? a. The Hantaan haemorrhagic fever virus

A

a. The Hantaan haemorrhagic fever virus
b. The Nairobi disease virus
c. The Crimean congo haemorrhagic disease virus d. The dabie bandavirus

73
Q

Classical swine fever virus is antigenically similar to the

a. African swine fever
b. Aujeszky’s disease virus
c. Transmissible gastroenteritis virus
d. Bovine viral diarrhoea virus

A

d. Bovine viral diarrhoea virus

74
Q

Hendra virus causes encephalitis in horse and human a. True

b. False

A

False

75
Q
  1. The CAV-1 causes kennel cough in dogs.
    a. False
    b. True
A

false

76
Q

. Which statement is false? The Aujeszky’s disease

virus. ..
a. Causes abortion and CNS signs in swine b. Causes CNS signs in carnivores
c. Is euryxen
d. Does not infect sheep

A

d. Does not infect sheep

77
Q

. Circoviruses

a. Are good antigens
b. Are inactivated quickly in an acidic environment c. Have a wide host range
d. Are enveloped

A

a. Are good antigens

78
Q

Bacteriophages

a. Have always binal symmetry b. Are antigenic in mammals
c. Eat bacteria
d. Are always DNA viruses

A

eat bacteria

79
Q

It is caused by parvovirus infection: a. Rabbit haemorrhagic disease

b. Aleutian mink disease
c. Chicken nephritis
d. Infectious bursitis of chicken

A

b. Aleutian mink disease

80
Q

The duck plague is caused by a herpesvirus

a. True
b. False

A

True

81
Q

It is a member of reovirdae virus family:

a. Duck plague virus
b. African horse sickness virus
c. African swine fever virus
d. Peste des petitis ruminants

A

b. African horse sickness virus

82
Q

Which statement is true?

a. Caliciviruses are enveloped
b. Caliciviruses have stenoxen host range
c. Caliciviruses are transmitted by ticks
d. Caliciviruses use their genome as Mrna

A

b. Caliciviruses have stenoxen host range

83
Q

The duck hepatitis A (1) is a notifiable disease a. False

b. True

A

True

84
Q

Border disease may cause abortion in sheep

a. True
b. False

A

True

85
Q

Which statement is true?

a. Metapneumoviruses cause swollen head syndrome in chicken.
b. Orthopenumoviruses cause shipping fever in sheep.
c. Metapneumoviruses cause interstitial emphysema in turkey.
d. Orthopenumoviruses cause kennel cough in dogs.

A

Metapneumoviruses cause swollen head syndrome in chicken.

specific virology (2 decks)

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