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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
Infectious canine hepatitis is uaually seen in elderly dogs
False
26
There is serological cross protection between Canine adenovirus type 1 and 2
True
27
Canine adenovirus 1 infects only dogs
False
28
Dogs may develop transient bilateral corneal opacity after canine adenovirus infecton
True
29
The virus that causes chicken-splenomegaly and pheasants marble spleen illness also causes haemorrhagic enteritis in turkeys.
True
30
During the turkeys haemorrhagic enteritis four weeks of age is the most serious
True
31
EDS only occurs in hens.
False
32
The egg drop syndrome fever, general symptoms.
False
33
Egg drop syndrome is a disease of chickens of all age groups.
False
34
It is characteristic with mild diarrhea and rough, hard eggshell in EDS.
False
35
Egg drop syndrome infects duck and geese as well
True
36
Eggdrop syndrome usually appears at the beginning of laying season
False
37
Mild diarrhea and thin shelled eggs are seen in EDS
True
38
Inactivated vaccines are used for the prevention of egg drop syndrome
True
39
Egg drop syndrome is caused by an aviadenovirus
False
40
Egg drop syndrome virus can spread germinatively
True
41
Egg drop syndrome occurs in Hungary
True
42
Avian adenovirus spread both vertically and horizontally
True
43
Chicken adenoviruses are species-specific
False
44
Chicken adenovirus can cause embryonic death, bronchitis, and inclusion body hepatitis.
True
45
Chicken adenoviruses mainly cause encephalitis in young chicken.
False
46
Adenovirus pathogenicity is very low, do not cause disease
False
47
Adenovirus may cause hydropericardium syndrome in chicken and geese
True
48
The turkey hemorrhagic enteritis and the marbele spleen disease are caused by the same virus
True?
49
The egg drop syndrome virus damages the oviduct of day old chicken
False
50
In young geese, respiratory disease may be caused by the EDS virus
True
51
Aviadenovirus infection of geese may cause lesions similar to the Derzsy’s disease
True
52
feather and beak deformities may appear after circovirus infection of geese and pigeons
True
53
beak and feather disease lesions are sometimes obvious only after molting
True
54
The parrot species in the circovirus infection symptoms often occur after molting
True
55
Pigeon circovirus infections do not occur in Hungary, the disease is prevented by vaccination
False
56
Circoviruses can infect pigeons
True
57
Vaccines are available for Pigeon Circovirus
False
58
Clinical signs of PBFDV (Psittacine Beak and Feather Disease Virus) are only seen at time of moulting
False
59
Pigeon circovirus frequently appear in diseases together with viruses
True
60
Inactivated vacines are used against pigeon circovirus infections
False
61
circovirus infection can result in high mortality of chickens over three weeks of age
False
62
Infectious chicken anaemia is seeing clinically only in young chickens
False?
63
Infectious chicken anaemia is a parvovirus infection which courses clinical signs in all age groups
False
64
No vaccination is needed for infectious chicken anaemia as the clinical signs are mild
False
65
atrophy of the thymus is a post-mortem finding of chicken circovirus
True
66
circovirus replicates in the bursa of Fabricius and the thymus
True
67
vaccination can protect hens and chickens against the chicken anaemia
True
68
Avian circovirus infections cause high morbidity and low mortality
True
69
CIA-virus is a gyrovirus
True
70
In CIA, most symptoms are observed in the first month
True
71
CIA infection involves destruction of the lymphoid and myeloid cells
True
72
CIA virus induces apoptosis of activated T cells
True
73
Pigeons can be infected by CIAV
False
74
CIA virus does not replicate in the thymus
False
75
CIA virus spread horizontally and vertically
True
76
CIA in day old chickens causes a long lasting immunosuppression
True
77
The circovirus has circular RNA in its genome
False
78
Infection of day old chickens with chicken anaemia virus leads to immune suppresion
True
79
Chicken anemia virus infection can cause death of chickens below 3 weeks of age
True
80
Circovirus started with contaminated Marek’s vaccines
True?
81
PCV2 infections are sporadic
False
82
Porcine circovirus 1 may cause embryonic disease
False
83
Porcine circovirus 1 is not pathogenic
True
84
the presence of PCV2 in pigs decreases the efficiency of vaccines
True
85
Swine circovirus infection is the frequent infection with clinical signs after weaning
True
86
Porcine circoviruses can not be responsible for reproductive disorders
False
87
Porcine circoviruses cause various diseases
True
88
Porcine circovirus can multiply in the myocardium of foetus
True
89
Reproductive disorders caused by porcine circoviruses are only significant in North America
False
90
Circovirus cause skin lesions in swine
True
91
Rare infection causing clinical signs only in piglets before weaning(PCV)
False
92
Prevention is with live attenuated vaccines(PCV)
False
93
General preventative rules & recently inactivated or vector vaccination can be used(PCV)
True
94
Porcine circoviruses are genetically and antigenically uniform
False
95
Porcine circoviruses are present worldwide
True
96
Porcine circoviruses may cause inapparent/subclinical infections
True
97
Porcine circovirus vaccines are available both for sows and for piglets
True
98
Porcine circovirus can be transmitted by mice and rats
True
99
We can detect PMWS virus from marcrophages
True
100
PMWS virus replicates in heartmuscle and gallbladder
False
101
PMWS causes atrophy of lymphnodes
False
102
PMWS is caused by a circovirus
True
103
Typical pathological findings PMWS it’s enlarged mesenteric lymph nodes
True
104
PMWS appear after weaning
True
105
PMWS appears as chronic disease of nervous system
False
106
PDNS is a frequent infection with clinical signs after weaning
True
107
Vaccinations against PCV2 may increase the incidence of PDNS
True
108
PDNS is only caused by PCV-2
False
109
PDNS disease is an immunocomplex disease
True
110
PDNS has been widespread in Hungary since 1998
True
111
PDNS is only caused by PCV-1
False
112
PDNS is not caused by PCV
False
113
PDNS does not occur in Hungary
False
114
PDNS occurs primarily in the weeks following the selection/weaning
True
115
PDNS is caused only by circoviruses
False
116
PRDC is caused by a porcine circovirus
True
117
Circovirus can be responsible for the porcine respiratory disease complex
True

EPI (15 decks)

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