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EPI > Midterm 2 part 2 chapter IV > Flashcards

Midterm 2 part 2 chapter IV Flashcards

1
Q

The Border disease is a hemorrhagic, respiratory syndrome in sheep.

A

False

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2
Q

In the sheep, border disease may cause a disease similar to the BVD.

A

True

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3
Q

Border disease is a respiratory and enteric disease of lambs.

A

False

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4
Q

Border disease occurs in Hungary.

A

True

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5
Q

Border disease causes abortion in ewes.

A

True

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6
Q

Border disease of sheep can be controlled by screening for carriers

A

True

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7
Q

All wild type of strains of classical swine fever are highly virulent.

A

False

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8
Q

Six distinct serotypes of classical swine fever virus are recognized so far.

A

False

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9
Q

Classical swine fever virus is an arbovirus.

A

False

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10
Q

Classical swine fever virus is a zoonotic agent.

A

False

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11
Q

Classical swine fever virus infection has an immunosuppressive effect.

A

True

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12
Q

Pigs shed classical swine fever virus only during the clinical stage of the disease.

A

False

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13
Q

Central nervous signs might be seen in classical swine fever.

A

True

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14
Q

Based on pathology and clinical signs, chronic classical fever is easy to diagnose

A

False

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15
Q

All known strains of the Classical swine fever virus are highly virulent.

A

False

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16
Q

Classical swine fever Virus spreads slowly in the host and causes mainly chronic disease.

A

False

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17
Q

Complicated forms of the Classical swine fever are rarely seen.

A

False

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18
Q

The Classical swine fever virus may cause reproductive disorders.

A

True

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19
Q

Hemorrhages are the most typical lesions of acute Classical swine fever.

A

True

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20
Q

Classical swine fever can unambiguously diagnosed by the clinical signs and pathology.

A

False

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21
Q

Domestic swine of most European countries are free from Classical swine fever virus.

A

True

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22
Q

The Classical swine fever may appear in a milder form in wild boar than in domestic swine.

A

True

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23
Q

Low virulence strains of CSFV may lead to asymptomatic infection.

A

True

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24
Q

CSF is spread via infected pigs

A

True

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25
Q

Sows infected by CSF will have immunotolerant piglets.

A

True

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26
Q

Piglets of sows vaccinated against CSF are vaccinated at 6-12 months

A

False

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27
Q

To prevent CSF, we vaccinate pigs older than 6 months of age with live vaccine.

A

False

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28
Q

To prevent CSF we use inactivated vaccines made from the Chinese strain.

A

False

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29
Q

Shedding may start 2-3 days after first clinical signs.

A

False

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30
Q

CSF can be prevented by inactivated vaccines.

A

False

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31
Q

CSF can hardly be distinguished from African swine fever.

A

True

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32
Q

CSF always causes abortion in pigs.

A

False

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33
Q

Hungary does not have to make any preventative action against CSF.

A

False

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34
Q

Incubation of CSF is 8-22 days.

A

True

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35
Q

CSF was first written about in USA.

A

True

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36
Q

First symptom of CSF is drooping ears.

A

False

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37
Q

CSF virus has good resistance.

A

True

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38
Q

Classical swine fever virus (CSFV) is mainly transmitted by mosquitoes.

A

False

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39
Q

The presence of CSFV in a herd does not influence reproduction parameters.

A

False

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40
Q

CSF is frequently complicated with bacterial infections.

A

True

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41
Q

The clinical signs of CSF and ASF are similar.

A

True

42
Q

Central nervous signs are never seen in CSF.

A

False

43
Q

Serological cross reactions my occur between BVD virus and CSFV.

A

False

44
Q

Only inactivated vaccines are available against CSFV.

A

False

45
Q

It is a disease of domestic swine and wild boars, but several other species are also susceptible.

A

False

46
Q

Only domestic swine and wild boar is susceptible

A

True

47
Q

Fever, anorexia haemorrhages in the skin and weakness of the hind legs are the most important signs for CSF.

A

True

48
Q

For prevention state medical steps and vaccination are used in Europe.

A

False

49
Q

The CSFV typically damages endothelial- and lymphatic tissues.

A

True

50
Q

Boutons in the large intestine are the earliest lesions in CSF.

A

False

51
Q

Swine shed CSFV only in the terminal phase of the disease.

A

False

52
Q

Wild boar may play a role in the maintenance and spread of Classical swine fever.

A

True

53
Q

In Europe vaccination of domestic pigs against Classical swine fever is common.

A

False

54
Q

Classical swine fever is a notifiable disease in Europe

A

True

55
Q

In Europe vaccination of domestic swine populations against CSF is compulsory.

A

False

56
Q

Orthobunyaviruses are transmitted by hematophagous arthropods.

A

True

57
Q

Several virus species belong to Bunyaviridae family, many present only in tropical regions.

A

True

58
Q

Bunyaviruses are typically arboviruses.

A

True

59
Q

Several bunyaviruses are zoonotic agents.

A

True

60
Q

Serological cross-reactions are frequent between related bunyaviruses.

A

True

61
Q

Bunyaviriuses has good antigens and good immune reaction.

A

True

62
Q

Akabane disease virus causes fetal damage in sheep.

A

True

63
Q

The main symptoms of the akabane disease are fetal development disorders.

A

True

64
Q

The akabane disease can cause abortion in sheep.

A

True

65
Q

The main symptoms of akabane disease are the malformation of the fetus.

A

True

66
Q

Akabane, Aino and Schmallenberg viruses cause similar disease in ruminants.

A

True

67
Q

Akabane occurs in South-West Africa and is a disease of swine.

A

False

68
Q

The Akabane disease is mainly seen in geese.

A

False

69
Q

Abortions and fetal malformations are the most typical signs of Akabane disease.

A

True

70
Q

Schmallenberg virus causes fetal damages in sheep.

A

True

71
Q

Schmallenberg virus emerged in Western Europe, in 2011, and spread rapidly in ruminants.

A

True

72
Q

In sheep the Schmallenberg virus mainly causes fetal malformations.

A

True

73
Q

Schmallenberg virus causes severe diseases in humans.

A

False

74
Q

Schmallenberg spread by midges vectors.

A

True

75
Q

No human case report on Schmallenberg virus.

A

True

76
Q

Pneumonia and abortion are the main signs of Schmallenberg virus infection in sheep

A

False

77
Q

Signs of acute Schmallenberg virus infection in cattle are lower and reduced milk production.

A

True

78
Q

Rift valley fever virus causes fetal damages in sheep.

A

False

79
Q

Rift Valley fever virus caused severe human outbreaks in Africa and in the Arab peninsula.

A

True

80
Q

Necrotic hepatitis is a typical lesion of Rift Valley fever.

A

True

81
Q

The principle vectors of the rift valley disease are gnats.

A

False

82
Q

Rift valley fever outbreaks are most frequently seen in horses.

A

False

83
Q

Rift valley fever virus may cause 100% mortality in young susceptible animals.

A

True

84
Q

In enzootic regions vaccines are used for the prevention of rift valley fever.

A

True

85
Q

Rift valley fever may cause high mortality in young ruminants

A

True

86
Q

Nairobi disease viruses causes fetal damages in sheep.

A

True

87
Q

Hemorrhagic gastroenteritis is a typical lesion of Nairobi sheep disease.

A

True

88
Q

Crimean-Congo Haemorrhagic fever virus is tick born.

A

True

89
Q

The Nairobi sheep disease may cause abortion in pregnant ewes.

A

True

90
Q

The most important symptom of the Nairobi sheep disease is nephritis.

A

False

91
Q

Nairobi disease occurs mainly in sheep.

A

True

92
Q

The leading symptom of Nairobi disease is renal insufficiency.

A

False

93
Q

The Nairobi sheep disease is vectored by ticks.

A

True

94
Q

Hantaviruses cause hemorrhagic fevers in rodents.

A

False

95
Q

Hanta viruses can cause renal symptoms in humans.

A

True

96
Q

Mainly rodents are the natural reservoir of hanta viruses.

A

True

97
Q

In domestic animals Hanta viruses typically cause liver dystrophy.

A

False

98
Q

Hanta virus infected people may develop severe renal failure.

A

True

99
Q

Hantavirus may cause respiratory disease in humans.

A

False

100
Q

Hanta viruses cause encephalitis in horses

A

False

EPI (15 decks)

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