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EPI > Short virus topics T/F 2 > Flashcards

Short virus topics T/F 2 Flashcards

1
Q

Marek’s disease only occurs in domestic fowl

A

False?

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2
Q

Marek’s disease spreads primarily via the aerogen

A

True

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3
Q

Marek’s disease virus is shed mainly via the faeces

A

False

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4
Q

Free marek virus are shed from feather follicles

A

True

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5
Q

The acute form of marek disease is charaterised by lymphoid cell proliferation

A

True

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6
Q

Marek’s disease in the tropics is rare

A

False

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7
Q

The chronic form of mareks disease is characterised by neurological disorders

A

True

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8
Q

MD severity depends on time of infection (age)

A

True

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9
Q

Neurological form of MD is frequent

A

False

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10
Q

MD is usally seen in chicks below 2 weeks

A

True

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11
Q

Marek disease in the blood multiplies in the endothelial cells

A

False

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12
Q

Marek disease is a beta herpes virus

A

False

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13
Q

MDV spread primarily germinatively

A

False

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14
Q

Marek’s disease primarily targets day old chickens

A

False

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15
Q

The neoplastic form of Marek disease is caused by high virulence strains

A

True

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16
Q

Vaccination is used for the prevention of Marek´s disease

A

True

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17
Q

The neoplastic form of Marek’s is caused by low virulence strains

A

False

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18
Q

Can differentiate MD from rethiculoendotheliosis only by lab diagnostics methods

A

True

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19
Q

Prevention: No measures needed as the Marek disease remains mostly symptomless

A

False

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20
Q

Preventative measures and vaccination of day old chickens must be used for the prevention of MDV

A

True

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21
Q

Live attenuated strains are used for vaccination for MD

A

True

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22
Q

No vaccination is needed against Marek’s disease

A

False

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23
Q

North America is free of Marek’s disease

A

False

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24
Q

Turkey herpesvirus can be used for vaccination against Marek\s disease

A

True

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25
Q

Both serotupes of the Marek’s disease virus cause disease in geese

A

False

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26
Q

The neurological form of Marek’s disease has an en-masse appearance

A

False

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27
Q

The highly virulent strains of Marek’s diease may cause tumours in turkeys

A

True

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28
Q

The incubation time of Marek’s disease is 1-2 days

A

False

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29
Q

The neurological form of Marek’s disease leads to significant liver degeneration

A

False

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30
Q

Marek’s disease viruses are uniform in virulence

A

False

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31
Q

Highly virulent Marek’s disease viruses may break through vaccine induced protection

A

True

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32
Q

The acute form of Marek’s disease is characterised by tumour development

A

True

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33
Q

Birds with transient paralysis caused by Marek’s disease usually make a full recovery

A

False

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34
Q

Cowpox virus is most frequently present in rodents

A

True

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35
Q

Cowpox virus is most frequently present in rodents

A

True

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36
Q

all pox virus induce long lasting immunity?

A

False

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37
Q

The cowpox can infect humans

A

True

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38
Q

Pseudocowpox virus only infects cloven hooved animals

A

False

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39
Q

Pseudocowpox infections may be present in humans

A

True

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40
Q

Bovine papular stomatitis is caused by a Parapoxvirus

A

True

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41
Q

vaccinia virus is species-specific

A

False

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42
Q

Recovering from cowpox results in lifelong immunity

A

True

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43
Q

Bovine papular stomatitis is frequently seasonal

A

True

44
Q

Lumpy skin disease results high mortality

A

False

45
Q

Lumpy skin disease is caused by parapox virus

A

False

46
Q

Generalization is frequent in lumpy skin disease virus infection

A

True

47
Q

Parapox infections induce a long-lasting immunity

A

False

48
Q

Sheep and goat pox are endemic in Africa

A

True

49
Q

Sheep pox virus infects mostly through inhalation

A

True

50
Q

Sheep and goat pox are transmitted by infected animals and fomites

A

True

51
Q

Sheep pox is a generalized disease with fever

A

True

52
Q

Sheep pox results high mortality in susceptible lambs

A

True

53
Q

Sheep and goat pox are endemic in Europe

A

False

54
Q

Vaccines are available against sheep pox in endemic areas.

A

True

55
Q

free of goatpox in Hungary.

A

True

56
Q

goats and sheep pox the same virus that causes smallpox.

A

False

57
Q

Lumpy skin disease results in high mortality

A

False

58
Q

Generalisation is frequent in lumpyskin disease virus infections

A

True

59
Q

Lumpy skin disease is caused by parapox viruses

A

False

60
Q

Lumpy skin disease virus is mostly transmitted by insects

A

True

61
Q

inactivated vaccines are used against contagious pustular dermatitis

A

False

62
Q

Orf is a rare disease of sheep flocks and cattle herds

A

False

63
Q

Orf affects sheep flocks and goat herds, mainly young lambs and kids

A

True

64
Q

Affected flocks should be brought under quarantine and vaccinated with live attenuated strains (Orf)

A

False?

65
Q

Orf is a zoonotic infection

A

True

66
Q

Neonatal lambs are susceptible, as they have no maternal immunity (Orf)

A

True

67
Q

Lesions typically appear on the muco-cutaneous junction (Orf)

A

True

68
Q

Vaccines induce lifelong immunity against contagious pustular dermatitis

A

False

69
Q

Strong crustation is frequent in contagious pustular dermatitis

A

True

70
Q

Swine pox gives life long immunity

A

True

71
Q

Swine pox affects only pigs & grows only on porcine tissue

A

True

72
Q

Swine pox can be transmitted by arthropods

A

True

73
Q

Swine pox might cause death in newborns

A

True

74
Q

Swine pox is frequently generalized in adult pigs

A

False

75
Q

Swinepox infection is usually subclinical

A

True in adults?

76
Q

Avian pox viruses are frequently transmitted by insects

A

True

77
Q

Fowlpox viruses cause generalized diseases in seals

A

False

78
Q

The cutaneous form of fowl pox is benign

A

True

79
Q

Heterologous viruses of avian pox frequently cause generalization

A

False

80
Q

Avian pox viruses are species specific

A

False

81
Q

Myxomatosis has a seasonal character

A

True

82
Q

Myxomatosis only occurs in Australia

A

False

83
Q

Only domestic rabbits are suseptible (Myxomatosis)

A

False

84
Q

Typical form presents with gelatinous swellings, “lion head” & cold-like symptoms (Myxomatosis)

A

True

85
Q

The nodular form of myxomatosis is caused by streams of lower virulence

A

True

86
Q

The myxomatosis only extends by ticks

A

False

87
Q

Myxomatosis is spread with mosquitoes

A

True

88
Q

Myxomatosis virus strains are serologically uniform

A

False

89
Q

There are no vaccines available against myxomatosis.

A

False

90
Q

myxomatosis virus crowded out of the wild-attenuated virus in Europe

A

False

91
Q

Conjunctival or respiratory form are atypical (Myxomatosis)

A

True

92
Q

Causes benign localisated skin lesion in cotton tail rabbits (Myxomatosis)

A

True

93
Q

No viraemia in cotton tail rabbits (Myxomatosis)

A

True

94
Q

Two myxomatosis serotypes are known

A

True

95
Q

Several levels of virulence can be seen in myxomatosis strains in Europe

A

True

96
Q

Myxomatosis virus spread from China to the rest of the world

A

False

97
Q

Myxomatosis may result on over 90% mortality in susceptible animals

A

True

98
Q

All Poxviruses induce long lasting immunity

A

False

99
Q

Humans can be infected swine pox

A

False

100
Q

Human can be infected by cowpox

A

True

101
Q

Human can be infected by pseudocowpox

A

True

102
Q

Human can be infected by vaccinia

A

True

103
Q

Human can be infected by monkey pox

A

True

104
Q

Human can be infected by parapoxviruses

A

True

105
Q

Human can be infected with orf

A

True

106
Q

Human can be infected myxomatosis

A

False

EPI (15 decks)

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