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EPI > Short virus topics T/F 3 > Flashcards

Short virus topics T/F 3 Flashcards

1
Q

Infertility and abortion are the most specific signs of bovine adenovirus infection

A

False

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2
Q

Bovine adenovirus 10 can cause haemorrhagic enteritis in cattle

A

True

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3
Q

Insufficient colostrum uptake increases the severity of adenovirus-induced diseases in calves

A

True

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4
Q

Adenoviral infection can cause hemorrhagic, necrotizing colitis in Suckling lambs

A

True

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5
Q

Canine adenonvirus serotype 2 causes central nervous system disease in pups

A

False

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6
Q

Rubarth disease occurs in birds.

A

False

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7
Q

Canine adenovirus 2 infects the upper respiratory tract

A

True

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8
Q

The Rubarth disease in dogs is not associated with neurological conditions

A

False

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9
Q

in the case of acute disease Rubarth cause death within 1-2 days

A

False

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10
Q

canine adenovirus serotype 1 may cause encephalitis

A

True

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11
Q

dogs carry canine adenovirus serotype 1 usually in the spleen

A

False

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12
Q

Both CAdV-2 and CAdV-1 serotypes can be used in vaccinate against Rubarth´s disease

A

True

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13
Q

Canine adenovirus infection is sporadic in Hungary

A

True?

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14
Q

Causative agent of Rubarth´s disease is CAdV-2

A

False

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15
Q

Canine infectious hepatitis is caused by several adenovirus serotypes

A

False

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16
Q

Canine infectious hepatitis is characterized by hepatitis and abortion

A

False

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17
Q

For Canine infectious hepatitis, Hepatitis and encephalitis are the main clinical signs

A

True

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18
Q

Canine infectious hepatitis vaccines usually contain CAdV-2 strain in live form

A

True

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19
Q

Dogs with Rubarth´s disease have a long term carrier status

A

True

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20
Q

CAdV-1 causes encephalitis in certain carnivororous hosts

A

True

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21
Q

Dogs carry Canine infectious hepatitis serotype 1 mostly in the spleen

A

False

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22
Q

Rubarth’s disease is a disease of older cats

A

False

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23
Q

Rubarth’s disease is caused by CAdV-1

A

True

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24
Q

No long term carrier stage is seen in canine adenovirus serotype 1 infection

A

False

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25
Q

Infectious canine hepatitis is uaually seen in elderly dogs

A

False

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26
Q

There is serological cross protection between Canine adenovirus type 1 and 2

A

True

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27
Q

Canine adenovirus 1 infects only dogs

A

False

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28
Q

Dogs may develop transient bilateral corneal opacity after canine adenovirus infecton

A

True

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29
Q

The virus that causes chicken-splenomegaly and pheasants marble spleen illness also causes haemorrhagic enteritis in turkeys.

A

True

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30
Q

During the turkeys haemorrhagic enteritis four weeks of age is the most serious

A

True

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31
Q

EDS only occurs in hens.

A

False

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32
Q

The egg drop syndrome fever, general symptoms.

A

False

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33
Q

Egg drop syndrome is a disease of chickens of all age groups.

A

False

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34
Q

It is characteristic with mild diarrhea and rough, hard eggshell in EDS.

A

False

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35
Q

Egg drop syndrome infects duck and geese as well

A

True

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36
Q

Eggdrop syndrome usually appears at the beginning of laying season

A

False

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37
Q

Mild diarrhea and thin shelled eggs are seen in EDS

A

True

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38
Q

Inactivated vaccines are used for the prevention of egg drop syndrome

A

True

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39
Q

Egg drop syndrome is caused by an aviadenovirus

A

False

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40
Q

Egg drop syndrome virus can spread germinatively

A

True

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41
Q

Egg drop syndrome occurs in Hungary

A

True

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42
Q

Avian adenovirus spread both vertically and horizontally

A

True

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43
Q

Chicken adenoviruses are species-specific

A

False

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44
Q

Chicken adenovirus can cause embryonic death, bronchitis, and inclusion body hepatitis.

A

True

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45
Q

Chicken adenoviruses mainly cause encephalitis in young chicken.

A

False

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46
Q

Adenovirus pathogenicity is very low, do not cause disease

A

False

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47
Q

Adenovirus may cause hydropericardium syndrome in chicken and geese

A

True

48
Q

The turkey hemorrhagic enteritis and the marbele spleen disease are caused by the same virus

A

True?

49
Q

The egg drop syndrome virus damages the oviduct of day old chicken

A

False

50
Q

In young geese, respiratory disease may be caused by the EDS virus

A

True

51
Q

Aviadenovirus infection of geese may cause lesions similar to the Derzsy’s disease

A

True

52
Q

feather and beak deformities may appear after circovirus infection of geese and pigeons

A

True

53
Q

beak and feather disease lesions are sometimes obvious only after molting

A

True

54
Q

The parrot species in the circovirus infection symptoms often occur after molting

A

True

55
Q

Pigeon circovirus infections do not occur in Hungary, the disease is prevented by vaccination

A

False

56
Q

Circoviruses can infect pigeons

A

True

57
Q

Vaccines are available for Pigeon Circovirus

A

False

58
Q

Clinical signs of PBFDV (Psittacine Beak and Feather Disease Virus) are only seen at time of moulting

A

False

59
Q

Pigeon circovirus frequently appear in diseases together with viruses

A

True

60
Q

Inactivated vacines are used against pigeon circovirus infections

A

False

61
Q

circovirus infection can result in high mortality of chickens over three weeks of age

A

False

62
Q

Infectious chicken anaemia is seeing clinically only in young chickens

A

False?

63
Q

Infectious chicken anaemia is a parvovirus infection which courses clinical signs in all age groups

A

False

64
Q

No vaccination is needed for infectious chicken anaemia as the clinical signs are mild

A

False

65
Q

atrophy of the thymus is a post-mortem finding of chicken circovirus

A

True

66
Q

circovirus replicates in the bursa of Fabricius and the thymus

A

True

67
Q

vaccination can protect hens and chickens against the chicken anaemia

A

True

68
Q

Avian circovirus infections cause high morbidity and low mortality

A

True

69
Q

CIA-virus is a gyrovirus

A

True

70
Q

In CIA, most symptoms are observed in the first month

A

True

71
Q

CIA infection involves destruction of the lymphoid and myeloid cells

A

True

72
Q

CIA virus induces apoptosis of activated T cells

A

True

73
Q

Pigeons can be infected by CIAV

A

False

74
Q

CIA virus does not replicate in the thymus

A

False

75
Q

CIA virus spread horizontally and vertically

A

True

76
Q

CIA in day old chickens causes a long lasting immunosuppression

A

True

77
Q

The circovirus has circular RNA in its genome

A

False

78
Q

Infection of day old chickens with chicken anaemia virus leads to immune suppresion

A

True

79
Q

Chicken anemia virus infection can cause death of chickens below 3 weeks of age

A

True

80
Q

Circovirus started with contaminated Marek’s vaccines

A

True?

81
Q

PCV2 infections are sporadic

A

False

82
Q

Porcine circovirus 1 may cause embryonic disease

A

False

83
Q

Porcine circovirus 1 is not pathogenic

A

True

84
Q

the presence of PCV2 in pigs decreases the efficiency of vaccines

A

True

85
Q

Swine circovirus infection is the frequent infection with clinical signs after weaning

A

True

86
Q

Porcine circoviruses can not be responsible for reproductive disorders

A

False

87
Q

Porcine circoviruses cause various diseases

A

True

88
Q

Porcine circovirus can multiply in the myocardium of foetus

A

True

89
Q

Reproductive disorders caused by porcine circoviruses are only significant in North America

A

False

90
Q

Circovirus cause skin lesions in swine

A

True

91
Q

Rare infection causing clinical signs only in piglets before weaning(PCV)

A

False

92
Q

Prevention is with live attenuated vaccines(PCV)

A

False

93
Q

General preventative rules & recently inactivated or vector vaccination can be used(PCV)

A

True

94
Q

Porcine circoviruses are genetically and antigenically uniform

A

False

95
Q

Porcine circoviruses are present worldwide

A

True

96
Q

Porcine circoviruses may cause inapparent/subclinical infections

A

True

97
Q

Porcine circovirus vaccines are available both for sows and for piglets

A

True

98
Q

Porcine circovirus can be transmitted by mice and rats

A

True

99
Q

We can detect PMWS virus from marcrophages

A

True

100
Q

PMWS virus replicates in heartmuscle and gallbladder

A

False

101
Q

PMWS causes atrophy of lymphnodes

A

False

102
Q

PMWS is caused by a circovirus

A

True

103
Q

Typical pathological findings PMWS it’s enlarged mesenteric lymph nodes

A

True

104
Q

PMWS appear after weaning

A

True

105
Q

PMWS appears as chronic disease of nervous system

A

False

106
Q

PDNS is a frequent infection with clinical signs after weaning

A

True

107
Q

Vaccinations against PCV2 may increase the incidence of PDNS

A

True

108
Q

PDNS is only caused by PCV-2

A

False

109
Q

PDNS disease is an immunocomplex disease

A

True

110
Q

PDNS has been widespread in Hungary since 1998

A

True

111
Q

PDNS is only caused by PCV-1

A

False

112
Q

PDNS is not caused by PCV

A

False

113
Q

PDNS does not occur in Hungary

A

False

114
Q

PDNS occurs primarily in the weeks following the selection/weaning

A

True

115
Q

PDNS is caused only by circoviruses

A

False

116
Q

PRDC is caused by a porcine circovirus

A

True

117
Q

Circovirus can be responsible for the porcine respiratory disease complex

A

True

EPI (15 decks)

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