Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

EPI PQ > CIRCOVIRUS > Flashcards

CIRCOVIRUS Flashcards

1
Q

The reproduction of the circovirus continuous in the dividing cells.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The circovirus is too small so it’s a bad antigen

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The circovirus is a good antigen

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Circovirus infections are immune suppressive

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Circovirus can easily be cultured in different homologous cell lines.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Resistance of circovirus is very low, in the environment they are inactivated within a day.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

The resistance of Circoviruses is high, they remain infectious in the environment for several
months.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Causes generalized lymphoid depletion.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Only causes the depletion of B-lymphocytes

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Canine circoviruses are present worldwide.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Circovirus are very resistant viruses

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The circovirus has circular RNA in its genome.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Swine circovirus causes lesions in multiple organs and strong immunosuppression.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Porcine circovirus can be transmitted by mice and rats.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Porcine circovirus vaccines are available both for sows and for piglets.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Detection of PCV􏰄’s DNA is enough for the correct diagnosis.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Four species of swine circovirus were described.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The porcine circovirus 2 is proven to be immunosuppressive.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

PCV2 detection in foetal myocardium is pathognomic value.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Porcine circovirus replicates in the myocardium of the foetus

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

In pigs the porcine circovirus 2 can cause BFD.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The porcine circovirus can replicate in the foetus.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The clinical signs, pathological and histopathological examination suggest PCV2 induced
disease

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

PCV2 can cause respiratory signs

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The primer replication of PCV2 is in lymphoid tissues of the throat

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

PCV2 infection does not always cause clinical signs

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Porcine circovirus 2 always causes clinical signs in pigs

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

orcine circovirus 2 always causes clinical signs in cattle

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

There is no efficient vaccine against PCV2

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

The porcine circovirus can replicate in the foetus

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Circovirus in pigs can be Subclinical.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Porcine circoviruses are responsible for a variety of clinical conditions

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Porcine circoviruses cannot be responsible for reproductive disorders

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Porcine circoviruses are present worldwide

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Porcine circoviruses cause severe haemorrhagic diseases in pigs

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Porcine circoviruses are genetically and antigenically uniform

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Porcine circoviruses may cause a variety of diseases.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

For prevention of Swine circovirus disease only general hygienic measures can be used

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Swine circovirus can cause retarded growth and strong immunosuppression.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

For prevention of swine circovirus disease, inactivated vaccine is available.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Swine circovirus may be shed in excretions for several months after recovery.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

The incubation period of Porcine circovirus caused disease is about 2-4 weeks

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Porcine circovirus-2 causes clinical signs mainly after weaning.

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Predisposing factors for Porcine Circovirus associated disease can be: Vaccines. The virus
variant. Virus strain

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Predisposing factors for Porcine Circovirus associated disease can be Food management.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

PCV2 can cause: Enteric disorders. Disorders in the nervous system. Respiratory disease.
Reproductions disorders

A

T

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Porcine circovirus-1 may damage the foetus.

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Porcine circoviruses cannot be responsible for reproductive disorders

A

F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Porcine circoviruses replicate in the heart of the foetus

A

T

50
Q

Porcine circovirus may cause inapparent infections.

A

T

51
Q

Circovirus can be responsible for the Porcine Respiratory Disease Complex.

A

T

52
Q

Circovirus cause skin lesions in swine

A

T

53
Q

A clinical sign of PMWS can be a progressive weight loss.

A

T

54
Q

PMWS is a type 3 hypersensitivity

A

F

55
Q

One of the most common pathological signs of PMWS is glomerulonephritis

A

F

56
Q

Typical pathological finding of PMWS is enlarged mesenteric lymph nodes

A

T

57
Q

A clinical sign of PMWS can be haemorrhages in the skin

A

F

58
Q

In pigs the porcine circovirus 1 can cause PMWS.

A

F

59
Q

In pigs the porcine circovirus 2 can cause PDNS

A

T

60
Q

One of the most common pathological signs of PDNS is glomerulonephritis.

A

T

61
Q

The appearance of PDNS is related to the good antigenicity of PCV2

A

T

62
Q

PDNS is a type III hypersensitivity

A

T

63
Q

PDNS may develop without porcine circovirus 2

A

T

64
Q

One of the most common clinical signs of PDNS is multifocal circular red skin disease

A

T

65
Q

PDNS disease is an immunocomplex disease

A

T

66
Q

PDNS does not occur in Hungar

A

F

67
Q

PDNS occurs primarily in the weeks following the selection/weaning.

A

T

68
Q

PDNS has been widespread in Hungary in Hungary since 1998

A

T

69
Q

PDNS is a rare infection causing clinical signs only in piglets before weaning.

A

F

70
Q

Prevention of PDNS is with live attenuated vaccines.

A

F

71
Q

Regarding PDNS, general preventative rules and recently inactivated or vector
vaccination can be used.

A

T

72
Q

In pigs the porcine circovirus 2 can cause BFD

A

F

73
Q

Avian circovirus causes clinical signs similar to those seen in PMWS.

A

T

74
Q

Avian circovirus causes clinical signs similar to those seen in PDNS.

A

F

75
Q

The pigeon circovirus is not an important disease because the virus causes feather and
beak deformities

A

F

76
Q

The beak and feather diseases causes typically neurological signs

A

F

77
Q

In parrots porcine circovirus 2 causes the psittacine beak and feather disease

A

F

78
Q

The beak and feather disease can be acute problem

A

T

79
Q

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

A

T

80
Q

Beak and feather disease lesions are sometimes obvious only after molting

A

T

81
Q

Avian circovirus infections result high morbidity and low mortality.

A

T

82
Q

Pigeon circoviruses are antigenically uniform

A

F

83
Q

Pigeon circoviruses frequently appear in diseases together with other viruses and
bacteria.

A

T

84
Q

Circovirus in geese and ducks can cause retarded growth and feather formation
disturbances

A

T

85
Q

Avian circoviruses do not cause clinical signs in domestic birds.

A

F

86
Q

In ducks and geese, Avian circoviruses can cause retarded growth and immunosuppression

A

T

87
Q

Avian circoviruses can spread via breeder eggs

A

T

88
Q

Avian circoviruses do not cause disease in wild birds.

A

F

89
Q

Avian circoviruses are species specific.

A

T

90
Q

Avian circoviruses can infect many poultry species.

A

T

91
Q

Avian circoviruses can cause retarded growth and immunosuppressio

A

T

92
Q

Inactivated vaccines are used against pigeon circovirus infections.

A

F

93
Q

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

A

F

94
Q

Circoviruses can infect pigeons

A

T

95
Q

Vaccines are available for Pigeon Circoviruses.

A

F

96
Q

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

A

F

97
Q

The chicken infectious anaemia virus is also commonly detected in goose.

A

F

98
Q

Anaemia and haemorrhages are two important clinical signs of chicken anaemia.

A

T

99
Q

The chicken infectious anaemia is a chicken disease up to 1 month of age

A

T

100
Q

The chicken infectious anaemia virus causes only anaemia

A

F

101
Q

The chicken anaemia virus does not replicate in lymphoid progenitors

A

F

102
Q

There are vaccines available against chicken anaemia

A

T

103
Q

The chicken infectious anaemia is a disease of hens

A

F

104
Q

The chicken infectious anaemia causes clinical signs similar to those seen in PDNS

A

F

105
Q

Vertical infectious is not possible in chicken infectious anaemia

A

F

106
Q

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

A

T

107
Q

Chicken anaemia virus is transmitted both horizontally and vertically.

A

T

108
Q

Atrophy of the thymus is a post mortem finding of Chicken Infectious Anaemia virus.

A

T

109
Q

Infectious Chicken anaemia virus can cause clinical signs only in layer hens.

A

F

110
Q

Infectious chicken anaemia virus causes clinical signs in chicken of 1 to 4 weeks of age.

A

T

111
Q

For prevention of infectious chicken anaemia, live attenuated vaccine is available.

A

T

112
Q

Infection of day-old chickens with the chicken anaemia virus leads to immune
suppression.

A

T

113
Q

Chicken anaemia virus infection can result in high mortality of chickens over 3 weeks of
age.

A

F

114
Q

In Chicken Infectious anaemia, most symptoms are observed in the first month.

A

T

115
Q

Chicken Infectious anaemia involves destruction of the lymphoid and myeloid cells.

A

T

116
Q

Chicken Infectious anaemia virus induces apoptosis of activated T-cells.

A

T

117
Q

Pigeons can be infected by Chicken Infectious anaemia virus.

A

F

118
Q

Chicken Infectious anaemia virus does not replicate in the thymus.

A

F

119
Q

Chicken Infectious anaemia in day old chickens causes a long-lasting
immunosuppression.

A

T

120
Q

Chicken Infectious anaemia virus is a Gyrovirus

A

T

121
Q

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

A

T

EPI PQ (37 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions