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EPI PQ > Arteriviruses > Flashcards

Arteriviruses Flashcards

1
Q

1) Arterivirus, the virulence is highly variable

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2
Q

1) The equine viral arteritis is caused by an arterivirus.

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3
Q

2) Serological tests can NOT be used for laboratory detection of equine viral arteritis

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4
Q

3) Red blood cells can be used for laboratory detection of equine viral arteritis virus

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5
Q

4) Nasal fluid can be used for laboratory detection of equine viral arteritis virus

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6
Q

5) A semen sample can be used for laboratory detection of equine viral arteritis virus

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7
Q

6) Equine arteritis virus is very resistant to physical damages

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8
Q

7) Equine viral arteritis is usually asymptomatic

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9
Q

8) In cases of equine viral arteritis, the rate of seroconverted animals increases with age

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T (I’m not sure)

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10
Q

9) The main target cells of equine viral arteritis are macrophage

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11
Q

10) Equine Viral arteritis (EVA) virus can affect donkeys

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12
Q

11) The persistence of EVA virus within one herd is usually caused by the stallions

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13
Q

12) EVA is transmitted by sexual and aerogenic pathways

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14
Q

13) After EVA virus infection, mortality rate is low

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15
Q

14) Equine arteritis virus is very resistant to physical damage

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16
Q

15) Equine viral arteritis is usually asymptomatic

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17
Q

16) The main target cells of equine viral arteritis virus are macrophages

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18
Q

17) EVA can affect donkeys

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19
Q

18) EVA can cause persistent virus carrying.

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20
Q

19) EVA is transmitted sexual and aerogenic

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21
Q

20) After EVA infection mortality rate is low

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T (I’m not sure)

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22
Q

21) Equine Viral Arteritis virus can infect by inhalation

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23
Q

22) Vaccine against Equine Viral Arteritis is never used in Europe

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24
Q

23) The Equine Viral Arteritis is caused by retrovirus

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25
Q

24) The equine viral arteritis virus cannot damage the wall of blood vessel

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26
Q

25) The equine viral arteritis virus usually causes asymptomatic infection

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27
Q

26) The equine viral arteritis virus rarely causes asymptomatic infection

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28
Q

27) The equine viral arteritis virus can cause persistent infections

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29
Q

28) The equine viral arteritis virus always causes clinical symptoms

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30
Q

29) EVA is spread by insect vectors

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31
Q

31) Equine viral arteritis causes reproductive problems/impotence in stallions.

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32
Q

32) Acute equine viral arteritis is similar to Equine infectious anaemia

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33
Q

33) Equine viral arteritis in mare is reactivated in pregnancy

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34
Q

34) Equine viral arteritis, aborted embryos have degenerated liver

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35
Q

35) Mares are frequently life-long carriers of the Equine arteritis virus.

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36
Q

36) Subcutaneous oedema is a frequent sign of equine viral arteritis

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37
Q

37) Pregnant mares usually abort in the acute phase of equine viral arteritis

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38
Q

38) Equine viral arteritis is diagnosed by agarose-gel immunodiffusion (Coggins test)

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39
Q

39) The Equine arteritis virus may cause abortion in pregnant mares

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40
Q

40) Vaccination of colts before puberty can prevent the development of EAV-carrier status

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41
Q

41) Stallions may be long-term carriers of the Equine arteritis virus

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42
Q

42) Conjunctivitis and subcutaneous oedema are possible signs of equine viral arteritis.

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43
Q

43) Equine viral arteritis virus can infect through nasal route

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44
Q

44) Equine viral arteritis virus can infect per os

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45
Q

45) Equine viral arteritis virus can infect through venereal way.

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46
Q

46) Equine viral arteritis virus can infect only by arthropods

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F

47
Q

47) Equine arteritis virus is a uniform virus without serotypes, subtypes etc

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T

48
Q

48) Aerogenic infection can happen in the case of equine arteritis virus

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T

49
Q

49) Equine arteritis virus is shed in the semen

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T

50
Q

50) Equine arteritis virus can cause abortion

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T

51
Q

51) Equine arteritis virus is very resistant to physical damage

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F

52
Q

52) In case of equine viral arteritis, the rate of seroconverted animals increases with age

A

T

53
Q

53) Lameness due to inflammatory joints is the most typical sign of Equine infectious arteritis

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F

54
Q

54) Equine infectious arteritis is a notifiable disease; therefore vaccinations are forbidden

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F

55
Q

55) The persistence of equine viral arteritis virus within one herd is usually caused by the
stallions

A

T

56
Q

56) Equine viral arteritis is transmitted by a sexual and aerogenic pathways

A

T

57
Q

57) After equine viral arteritis virus infection, mortality rate is low

A

T

58
Q

58) Equine infectious arteritis is a notifiable disease

A

T

59
Q

59) The main target of Equine viral arteritis virus is macrophages.

A

T

60
Q

60) Equine infectious arteritis is stenoxen viruses

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T

61
Q

61) Equine viral arteritis can be controlled in part by removing long-term carriers

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T

62
Q

62) Equine viral arteritis can affect donkeys

A

T

63
Q

PRRS is caused by an arterivirus.

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T

64
Q

PRRS is caused by a coronavirus

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F

65
Q

The clinical signs of PRRS can be abortion like that of SMED

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T

66
Q

Isolation of PRRS in cell culture can be easily performed in any laboratory

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F

67
Q

PRRS has only highly pathogenic variants

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F

68
Q

Respiratory signs of PRRS occur just in sows

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F

69
Q

PRRS virus replicates in macrophages

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T

70
Q

PRRS virus replicates in T-lymphocytes

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F

71
Q

The pathological signs of PRRS is typical because the lymph nodes are never enlarged

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F

72
Q

PRRS virus affects the respiratory system in young piglets

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T

73
Q

PRRS cause digestive sign in adult

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F

74
Q

PRRS has 2 phases

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T

75
Q

PRRS cause respiratory sign in adult

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F

76
Q

Target cells of PRRSV are alveolar epithelial cells

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F

77
Q

PRRS can only be isolated in porcine kidney cells.

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F

78
Q

PRRS causes immune suppression in prolonged cases

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F

79
Q

Attenuated and inactivated vaccines are available against PRRS

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T

80
Q

PRRS virus causes severe intestinal problems in adult pigs

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F

81
Q

PRRS is characterized by respiratory disease in adult pigs

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F

82
Q

PRRS infection has 2 clinical phases

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T

83
Q

PRRSV attacks the active macrophages

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T

84
Q

For PRRS prevention we can get a very good immunization with inactivated vaccines

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F

85
Q

PRRS: reproductive and respiratory problems and others with other virulence

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T

86
Q

Maternal immunity protects only short time against PRRS

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T

87
Q

Porcine reproductive and respiratory virus (PRRSV) can cause abortion only in the advanced
stage of pregnancy (over 90 days).

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F

88
Q

Only inactivated vaccines can be used for the prevention against PRRSV

A

F

89
Q

Porcine reproductive and respiratory virus (PRRSV) propagates in lymphatic cells

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T

90
Q

PRRSV infection may influence the reproductive performance of boars

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T

91
Q

Porcine reproductive and respiratory virus (PRRSV) is a zoonotic agent

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F

92
Q

Porcine parvoviruses and PRRSV may cause similar disease in sows

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T

93
Q

Porcine reproductive and respiratory vines (PRRSV) does not cause clinical signs in boars.

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F

94
Q

Inactivated vaccines alone cannot induce protective immunity against PRRSV

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T

95
Q

Boars can transmit porcine reproductive and respiratory syndrome virus in the semen

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T

96
Q

Porcine reproductive and respiratory syndrome virus cannot cause abortion, only infertility
of the sows

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F

97
Q

There are no vaccines for the prevention of Porcine reproductive and respiratory syndrome.

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F

98
Q

The blue ear disease is caused by dog coronavirus

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F

99
Q

The blue ear disease is caused by FIP

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F

100
Q

The blue ear disease is caused by chicken coronavirus.

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F

101
Q

The blue ear disease is caused by PRRS

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T

102
Q

Does PRRS virus have 3 genotypes.

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F

103
Q

Oedema can be a sign of PRRS.

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T

104
Q

PRRS is deadly in adult animals

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F

105
Q

Target cells of PRRSV are alveolar epithelial cells.

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F

106
Q

PRRS virus can only be isolated in porcine kidney cell culture

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F

107
Q

The Porcine reproductive and respiratory syndrome (PRRS) is only present in NorthAmerica

A

F

108
Q

The PRRS virus may cause reproductive problems in boars

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T

109
Q

PRRS: cyanosis is one clinical symptom

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T

EPI PQ (37 decks)

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