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Epidemiology - MIDTERM 2 > PQS - Picornaviruses (2) > Flashcards

PQS - Picornaviruses (2) Flashcards

1
Q

Haemorrhages in the parenchymal organs are frequent postmortem lesions of avian encephalomyelitis

A

F

No pathological lesions

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2
Q

Haemorrhages are frequent postmortem lesions of avian encephalomyelitis

A

F

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3
Q

There is germinative spread in the case of avian encephalomyelitis

A

T

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4
Q

There is no germinative infection in the case of avian encephalomyelitis

A

F

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5
Q

Avian encephalomyelitis is not transmitted germinatively.

A

F

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6
Q

Tremor is a typical clinical sign of avian encephalomyelitis

A

T

Avian encephalomyelitis belongs to the tremovirus genus = tremor being a typical sign

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7
Q

Avian Encephalomyelitis is not transmitted through the egg

A

F

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8
Q

Avian encephalomyelitis virus can infect chicken

A

T

All age groups

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9
Q

Clinical signs of avian encephalomyelitis can be seen in animals up to 5 weeks of age

A

T

1-5 weeks

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10
Q

Avian encephalomyelitis virus is shed in the faeces

A

T

The primary way

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11
Q

Avian encephalomyelitis is caused by a double stranded DNA virus

A

F

RNA virus

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12
Q

Chickens are susceptible to avian encephalomyelitis virus

A

T

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13
Q

Germinative infection is a way of spreading of avian encephalomyelitis virus

A

T

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14
Q

Avian encephalomyelitis is caused by enterovirus

A

F

Tremorvirus
BUT used to be enterovirus

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15
Q

Incubation time of Avian encephalomyelitis virus is 11 (9-10) days following PO infection

A

T

1-11 days incubation

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16
Q

Incubation time of Avian encephalomyelitis virus depends on the mode of infection

A

T

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17
Q

Avian encephalomyelitis is caused by a hepatovirus

A

F

Tremovirus

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18
Q

Avian encephalomyelitis is not transmitted germinatively

A

F

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19
Q

Avian encephalomyelitis virus kills the embryo

A

F

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20
Q

Avian encephalomyelitis is present only in chickens.

A

F

All age groups of galliformes

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21
Q

Avian encephalomyelitis virus is killed at hatching temperature.

A

F

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22
Q

Avian encephalomyelitis spreads both horizontally and via eggs

A

T

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23
Q

Infection via eggs does not occur in Avian encephalomyelitis

A

F

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24
Q

Avian encephalomyelitis is not transmitted through the egg.

A

F

(Caused by tremovirus)

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25
Q

Germinative infection can happen in the case of duck hepatitis

A

F

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26
Q

Spasmodical paddling is a frequent clinical sign of duck hepatitis

A

T

Due to damage of kidney

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27
Q

The resistance of duck hepatitis A virus is high

A

T

Non-enveloped virus = high resistance

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28
Q

Ducks are infected with the duck hepatitis A virus generally per os

A

T

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29
Q

Duck hepatitis cannot be prevented with vaccination

A

F

We have attenuated and inactivated vaccine

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30
Q

Duck hepatitis A virus is shed in the faeces

A

T

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31
Q

Duck hepatitis A virus does not cause viraemia.

A

F

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32
Q

Ducks are infected with the duck hepatitis A virus generally per os

A

T

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33
Q

Duck hepatitis A virus can cause germinative infection

A

F

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34
Q

Clinical signs of duck hepatitis can be seen mainly in laying ducks

A

F

Mainly in ducks between 1-4 weeks of age

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35
Q

Duck hepatitis A virus can be detected with PCR.

A

T

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36
Q

Germinative infection is the primary way of infection with Duck hepatitis A Virus.

A

F

There is no germinative infection

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37
Q

Clinical signs of Duck hepatitis are seen in 1-4 week old ducklings.

A

T

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38
Q

Spasmodical paddling is a typical sign of Duck hepatitis.

A

T

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39
Q

There are no vaccines for the prevention of Duck hepatitis.

A

F

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40
Q

Per os infection is a common way of infection with duck hepatitis A virus.

A

T

41
Q

Clinical signs of duck hepatitis can be seen in all age groups.

A

F

42
Q

Duck Viral Hepatitis is present in Hungary on a large scale.

A

F

Some cases seen in Hungary, but not large scale

43
Q

Duck Viral Hepatitis can be caused by multiple virus spp./serotypes.

A

T

44
Q

Duck Viral Hepatitis is primarily a disease of younger ducklings.

A

T

45
Q

The primary replication site is the GI tract in Duck Viral Hepatitis.

A

T

46
Q

Type 4 Duck Viral Hepatitis can infect older animals.

A

F

Type 4 does not exsist

47
Q

Duck Viral Hepatitis is caused by type 1 and 2 coronavirus.

A

F

By Avian hepatovirus under picornavirus family

48
Q

Duck Viral Hepatitis causes haemorrhagic enteritis in older ducks.

A

F

49
Q

Pathogens of Duck Viral Hepatitis can infect older animals.

A

T

50
Q

Encephalomyocarditis virus is shed in the faeces by infected animals

A

T

51
Q

Encephalomyocarditis virus infects animals mainly per os

A

T

52
Q

Encephalomyocarditis infections are rare

A

F

53
Q

Encephalomyocarditis virus can infect only pigs.

A

F

Zoonotic

54
Q

Encephalomyocarditis virus remains infective in the environment

A

T

55
Q

Encephalomyocarditis virus can cause per os infection

A

T

56
Q

Encephalomyocarditis virus can infect humans

A

T

57
Q

Encephalomyocarditis virus has a narrow host range.

A

F

58
Q

Rodents can maintain encephalomyocarditis infection.

A

T

They are maintaining hosts

59
Q

Encephalomyocarditis virus can cause necrosis of the heart muscle.

A

T

60
Q

Encephalomyocarditis is a zoonosis.

A

T

61
Q

Encephalomyocarditis may be deadly for elephants.

A

T

62
Q

Vesicles can be seen in the liver in the case of swine vesicular disease

A

F

63
Q

Swine vesicular disease virus cannot cause viraemia

A

F

64
Q

Swine vesicular disease virus can cause viraemia

A

T

65
Q

Swine vesicular disease is a zoonosis

A

F

66
Q

Swine vesicular disease virus can cause vesicles on the snout of pigs

A

T

67
Q

The resistance of swine vesicular disease virus is very low; it cannot survive in the
environment

A

F

68
Q

Haemorrhages in the serous membranes can be frequently seen postmortem in the case of swine vesicular disease

A

F

69
Q

Haemorrhages can be seen post mortem in the case of swine vesicular disease

A

F

70
Q

The mortality of swine vesicular disease is 40-50%

A

F

71
Q

The mortality of swine vesicular disease is very high, it can be 50-60%

A

F

72
Q

Swine vesicular disease is frequently seen in Europe

A

F

Europe is free

73
Q

Only pigs are susceptible to swine vesicular disease virus

A

T

74
Q

Pigs are infected with swine vesicular disease virus per os.

A

T

75
Q

Swine vesicular disease is present worldwide

A

F

76
Q

Swine vesicular disease is frequent among pigs

A

F

Not frequent, not seen between 2015-2023

77
Q

Swine vesicular disease occurs only in Africa, it never occurred in Europe

A

F

78
Q

Swine vesicular disease virus can be shed by asymptomatic carriers

A

T

79
Q

Swine vesicular disease virus can infect only pigs

A

T

80
Q

Swine Vesicular Disease virus can infect swine and ruminants.

A

F

81
Q

Swine Vesicular Disease virus can cause infection per os.

A

T

82
Q

Swine Vesicular Disease virus does not cause viraemia, only local lesions can be seen

A

F

83
Q

Swine Vesicular Disease virus can infect humans

A

F

84
Q

Swine vesicular disease virus cannot survive in the environment.

A

F

85
Q

Swine Vesicular Disease cause skin lesions in bovids.

A

F

86
Q

Swine Vesicular Disease is derived from Coxsacki-B5.

A

T

87
Q

Swine Vesicular Disease virus can replicate in CNS

A

T

88
Q

Swine Vesicular Disease is present only in Italy.

A

F

89
Q

Swine Vesicular Disease is present only in Hong Kong

A

F

90
Q

Swine Vesicular Disease was present in both Italy and Hong Kong

A

T

91
Q

Swine Vesicular Disease can cause clinical signs in humans

A

F

92
Q

Swine Vesicular Disease has been present in all European countries, but now only present in South-East Asia.

A

F

93
Q

Swine Vesicular Disease is similar in appearance to Foot and Mouth Disease.

A

T

94
Q

Swine Vesicular Disease causes skin lesions in cattle.

A

F

95
Q

Judging from the clinical signs, Swine Vesicular Disease cannot be differentiated from FMD.

A

T

96
Q

Swine Vesicular Disease is frequent among pigs.

A

F

Not frequent

97
Q

Lameness can be a sign of Swine Vesicular Disease.

A

T

98
Q

Swine vesicular disease virus replicates in the epithelium of the throat and tonsils

A

F ??

SVD replicates in the epithelium of throat and gut

Epidemiology - MIDTERM 2 (35 decks)

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